minor #21864 [Security] fix Composer constraint (xabbuh)
minor #21864 [Security] fix Composer constraint (xabbuh)

This PR was merged into the 2.7 branch.

Discussion
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[Security] fix Composer constraint

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

The `MAX_USERNAME_LENGTH` constant introduced by #18733 that is used in the `UsernamePasswordFormAuthenticationListener` was first part of Symfony 2.7.13 and 2.8.6.

Commits
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69a572d [Security] fix Composer constraint

zorn-v/symfony,klandaika/symfony,Koc/symfony,Slamdunk/symfony,dmaicher/symfony,hhamon/symfony,jakubsacha/symfony,Slamdunk/symfony,jvasseur/symfony,hacfi/symfony,jakzal/symfony,c960657/symfony,mnapoli/symfony,romaricdrigon/symfony,SaschaDens/symfony,lepiaf/symfony,fabpot/symfony,HeahDude/symfony,josephdpurcell/symfony,d-ph/symfony,klandaika/symfony,josephdpurcell/symfony,pamil/symfony,MatTheCat/symfony,okdana/symfony,lyrixx/symfony,mpdude/symfony,sroze/symfony,Soullivaneuh/symfony,mweimerskirch/symfony,gnat42/symfony,zerkms/symfony,curry684/symfony,garak/symfony,pamil/symfony,Taluu/symfony,jvasseur/symfony,maidmaid/symfony,HeahDude/symfony,c960657/symfony,Tobion/symfony,Tobion/symfony,damienalexandre/symfony,dmaicher/symfony,zcodes/symfony,e-moe/symfony,SpacePossum/symfony,mvhirsch/symfony,gnat42/symfony,andrerom/symfony,iltar/symfony,hhamon/symfony,gnat42/symfony,bendavies/symfony,mpdude/symfony,OndraM/symfony,SpacePossum/symfony,mvhirsch/symfony,mweimerskirch/symfony,SpacePossum/symfony,phramz/symfony,apetitpa/symfony,hhamon/symfony,WhiteEagle88/symfony,Nyholm/symfony,Triiistan/symfony,weaverryan/symfony,Einenlum/symfony,deguif/symfony,oleg-andreyev/symfony,OskarStark/symfony,jakzal/symfony,nicolas-grekas/symfony,Deamon/symfony,Koc/symfony,jakubsacha/symfony,weaverryan/symfony,Strate/symfony,dmaicher/symfony,OskarStark/symfony,Tobion/symfony,yceruto/symfony,d-ph/symfony,fabpot/symfony,garak/symfony,ajgarlag/symfony,ragboyjr/symfony,neemzy/symfony,lstrojny/symfony,gencer/symfony,inso/symfony,iltar/symfony,Amo/symfony,SaschaDens/symfony,1ed/symfony,DavidGarciaCat/symfony,gimler/symfony,Strate/symfony,docteurklein/symfony,Simperfit/symfony,jakzal/symfony,sroze/symfony,shieldo/symfony,gonzalovilaseca/symfony,apetitpa/symfony,derrabus/symfony,andrerom/symfony,hason/symfony,pyrech/symfony,mihai-stancu/symfony,joelwurtz/symfony,garak/symfony,d-ph/symfony,mnapoli/symfony,e-moe/symfony,phramz/symfony,csarrazi/symfony,chalasr/symfony,dunglas/symfony,nasimnabavi/symfony,josephdpurcell/symfony,jzawadzki/symfony,pierredup/symfony,gencer/symfony,Deamon/symfony,jvasseur/symfony,sstok/symfony,inso/symfony,alekitto/symfony,mihai-stancu/symfony,Triiistan/symfony,Soullivaneuh/symfony,Amo/symfony,jakubsacha/symfony,tucksaun/symfony,arjenm/symfony,Pierstoval/symfony,ajgarlag/symfony,neemzy/symfony,michaelperrin/symfony,SpacePossum/symfony,voronkovich/symfony,ro0NL/symfony,csarrazi/symfony,smatyas/symfony,zerkms/symfony,jderusse/symfony,oleg-andreyev/symfony,hacfi/symfony,joelwurtz/symfony,phramz/symfony,maidmaid/symfony,ajgarlag/symfony,OndraM/symfony,paradajozsef/symfony,Triiistan/symfony,paradajozsef/symfony,codeclimate-testing/symfony,mvhirsch/symfony,ogizanagi/symfony,smatyas/symfony,d-ph/symfony,joelwurtz/symfony,zcodes/symfony,ogizanagi/symfony,mweimerskirch/symfony,arjenm/symfony,mweimerskirch/symfony,chalasr/symfony,joelwurtz/symfony,docteurklein/symfony,romaricdrigon/symfony,Pierstoval/symfony,maidmaid/symfony,jean-gui/symfony,localheinz/symfony,kbond/symfony,vincentaubert/symfony,gonzalovilaseca/symfony,Soullivaneuh/symfony,stof/symfony,OndraM/symfony,sroze/symfony,klandaika/symfony,Strate/symfony,tgalopin/symfony,deguif/symfony,frankdejonge/symfony,pierredup/symfony,pamil/symfony,xabbuh/symfony,gimler/symfony,localheinz/symfony,sgehrig/symfony,hason/symfony,damienalexandre/symfony,curry684/symfony,Taluu/symfony,mnapoli/symfony,1ed/symfony,xabbuh/symfony,mpdude/symfony,gimler/symfony,e-moe/symfony,codeclimate-testing/symfony,aeoris/symfony,SpacePossum/symfony,fabpot/symfony,dzuelke/symfony,xabbuh/symfony,andreia/symfony,nicolas-grekas/symfony,Amo/symfony,jderusse/symfony,bendavies/symfony,hason/symfony,frankdejonge/symfony,yceruto/symfony,kbond/symfony,chalasr/symfony,andreia/symfony,lyrixx/symfony,MatTheCat/symfony,HeahDude/symfony,sgehrig/symfony,andrerom/symfony,pamil/symfony,backbone87/symfony,symfony/symfony,SaschaDens/symfony,Simperfit/symfony,romaricdrigon/symfony,yceruto/symfony,Simperfit/symfony,SaschaDens/symfony,zorn-v/symfony,sstok/symfony,Simperfit/symfony,weaverryan/symfony,nicolas-grekas/symfony,OskarStark/symfony,sgehrig/symfony,andreia/symfony,mpdude/symfony,Nyholm/symfony,jean-gui/symfony,Taluu/symfony,Amo/symfony,WhiteEagle88/symfony,Taluu/symfony,pyrech/symfony,klandaika/symfony,tucksaun/symfony,Einenlum/symfony,Engerim/symfony,Simperfit/symfony,teohhanhui/symfony,derrabus/symfony,docteurklein/symfony,nicolas-grekas/symfony,HeahDude/symfony,aeoris/symfony,OndraM/symfony,Deamon/symfony,jvasseur/symfony,MatTheCat/symfony,lstrojny/symfony,mihai-stancu/symfony,smatyas/symfony,alekitto/symfony,chalasr/symfony,apetitpa/symfony,ro0NL/symfony,Engerim/symfony,paradajozsef/symfony,weaverryan/symfony,deguif/symfony,Slamdunk/symfony,dzuelke/symfony,pierredup/symfony,backbone87/symfony,nasimnabavi/symfony,Engerim/symfony,klandaika/symfony,ajgarlag/symfony,jzawadzki/symfony,derrabus/symfony,ro0NL/symfony,dzuelke/symfony,aeoris/symfony,Koc/symfony,okdana/symfony,jean-gui/symfony,dmaicher/symfony,smatyas/symfony,romaricdrigon/symfony,dunglas/symfony,gencer/symfony,tgalopin/symfony,pierredup/symfony,localheinz/symfony,1ed/symfony,Tobion/symfony,teohhanhui/symfony,zcodes/symfony,Aliance/symfony,zorn-v/symfony,oleg-andreyev/symfony,voronkovich/symfony,pyrech/symfony,gonzalovilaseca/symfony,sstok/symfony,sstok/symfony,ogizanagi/symfony,curry684/symfony,lstrojny/symfony,teohhanhui/symfony,Deamon/symfony,michaelperrin/symfony,localheinz/symfony,c960657/symfony,Triiistan/symfony,damienalexandre/symfony,teohhanhui/symfony,stof/symfony,Slamdunk/symfony,OskarStark/symfony,jderusse/symfony,smatyas/symfony,mnapoli/symfony,docteurklein/symfony,jzawadzki/symfony,gonzalovilaseca/symfony,zerkms/symfony,andrerom/symfony,tucksaun/symfony,hhamon/symfony,andreia/symfony,vincentaubert/symfony,1ed/symfony,inso/symfony,symfony/symfony,Nyholm/symfony,yceruto/symfony,lepiaf/symfony,mweimerskirch/symfony,SaschaDens/symfony,ragboyjr/symfony,jakzal/symfony,jakubsacha/symfony,gnat42/symfony,iltar/symfony,Triiistan/symfony,symfony/symfony,ragboyjr/symfony,zorn-v/symfony,OndraM/symfony,curry684/symfony,Pierstoval/symfony,c960657/symfony,jderusse/symfony,nasimnabavi/symfony,oleg-andreyev/symfony,symfony/symfony,dunglas/symfony,paradajozsef/symfony,jakubsacha/symfony,fabpot/symfony,backbone87/symfony,arjenm/symfony,voronkovich/symfony,phramz/symfony,Soullivaneuh/symfony,tucksaun/symfony,codeclimate-testing/symfony,Aliance/symfony,michaelperrin/symfony,mihai-stancu/symfony,shieldo/symfony,arjenm/symfony,vincentaubert/symfony,kbond/symfony,inso/symfony,okdana/symfony,bendavies/symfony,mnapoli/symfony,codeclimate-testing/symfony,Amo/symfony,csarrazi/symfony,mvhirsch/symfony,hacfi/symfony,ogizanagi/symfony,alekitto/symfony,DavidGarciaCat/symfony,gimler/symfony,ragboyjr/symfony,shieldo/symfony,vincentaubert/symfony,xabbuh/symfony,DavidGarciaCat/symfony,dzuelke/symfony,apetitpa/symfony,zerkms/symfony,mihai-stancu/symfony,michaelperrin/symfony,shieldo/symfony,garak/symfony,inso/symfony,tgalopin/symfony,tgalopin/symfony,MatTheCat/symfony,sroze/symfony,lyrixx/symfony,docteurklein/symfony,stof/symfony,pyrech/symfony,zcodes/symfony,ro0NL/symfony,iltar/symfony,neemzy/symfony,Nyholm/symfony,Pierstoval/symfony,sstok/symfony,damienalexandre/symfony,frankdejonge/symfony,mvhirsch/symfony,Einenlum/symfony,Einenlum/symfony,lyrixx/symfony,sgehrig/symfony,Aliance/symfony,deguif/symfony,frankdejonge/symfony,voronkovich/symfony,WhiteEagle88/symfony,nasimnabavi/symfony,stof/symfony,dzuelke/symfony,Soullivaneuh/symfony,Deamon/symfony,kbond/symfony,lepiaf/symfony,bendavies/symfony,jean-gui/symfony,alekitto/symfony,maidmaid/symfony,derrabus/symfony,e-moe/symfony,Koc/symfony