minor #35630 [travis] fix patching return types of symfony/contracts (nicolas-grekas)
minor #35630 [travis] fix patching return types of symfony/contracts (nicolas-grekas)

This PR was merged into the 4.4 branch.

Discussion
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[travis] fix patching return types of symfony/contracts

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Fixing failing builds like https://travis-ci.org/symfony/symfony/jobs/647233182

Commits
-------

076a2a0a71 [travis] fix patching return types of symfony/contracts

d-ph/symfony,xabbuh/symfony,mnapoli/symfony,lstrojny/symfony,tucksaun/symfony,Koc/symfony,chalasr/symfony,jderusse/symfony,alekitto/symfony,Nyholm/symfony,Tobion/symfony,pierredup/symfony,pyrech/symfony,ogizanagi/symfony,xabbuh/symfony,jderusse/symfony,nicolas-grekas/symfony,Slamdunk/symfony,Tobion/symfony,pyrech/symfony,HeahDude/symfony,Taluu/symfony,mpdude/symfony,tucksaun/symfony,nicolas-grekas/symfony,1ed/symfony,kbond/symfony,1ed/symfony,damienalexandre/symfony,Slamdunk/symfony,localheinz/symfony,HeahDude/symfony,fabpot/symfony,mweimerskirch/symfony,ro0NL/symfony,ogizanagi/symfony,tgalopin/symfony,Deamon/symfony,Deamon/symfony,mpdude/symfony,MatTheCat/symfony,mnapoli/symfony,sgehrig/symfony,mweimerskirch/symfony,lyrixx/symfony,lstrojny/symfony,stof/symfony,jakzal/symfony,jakzal/symfony,zerkms/symfony,ragboyjr/symfony,voronkovich/symfony,1ed/symfony,Koc/symfony,bendavies/symfony,chalasr/symfony,xabbuh/symfony,garak/symfony,Deamon/symfony,curry684/symfony,curry684/symfony,localheinz/symfony,localheinz/symfony,symfony/symfony,derrabus/symfony,pierredup/symfony,Deamon/symfony,jderusse/symfony,voronkovich/symfony,tgalopin/symfony,bendavies/symfony,pyrech/symfony,MatTheCat/symfony,ogizanagi/symfony,gonzalovilaseca/symfony,mweimerskirch/symfony,zerkms/symfony,derrabus/symfony,ro0NL/symfony,mnapoli/symfony,jakzal/symfony,paradajozsef/symfony,Simperfit/symfony,garak/symfony,jvasseur/symfony,mpdude/symfony,smatyas/symfony,mnapoli/symfony,Nyholm/symfony,phramz/symfony,ro0NL/symfony,lyrixx/symfony,bendavies/symfony,Taluu/symfony,mnapoli/symfony,mweimerskirch/symfony,ragboyjr/symfony,derrabus/symfony,garak/symfony,chalasr/symfony,Slamdunk/symfony,OskarStark/symfony,smatyas/symfony,Tobion/symfony,curry684/symfony,OskarStark/symfony,nicolas-grekas/symfony,Koc/symfony,jderusse/symfony,jakzal/symfony,phramz/symfony,d-ph/symfony,tucksaun/symfony,tucksaun/symfony,damienalexandre/symfony,d-ph/symfony,Simperfit/symfony,paradajozsef/symfony,Simperfit/symfony,curry684/symfony,pyrech/symfony,Nyholm/symfony,fabpot/symfony,Koc/symfony,1ed/symfony,alekitto/symfony,gonzalovilaseca/symfony,HeahDude/symfony,tgalopin/symfony,sgehrig/symfony,voronkovich/symfony,lyrixx/symfony,ogizanagi/symfony,hhamon/symfony,oleg-andreyev/symfony,oleg-andreyev/symfony,ro0NL/symfony,symfony/symfony,paradajozsef/symfony,lyrixx/symfony,alekitto/symfony,hhamon/symfony,Simperfit/symfony,smatyas/symfony,nicolas-grekas/symfony,sgehrig/symfony,garak/symfony,jvasseur/symfony,jvasseur/symfony,gonzalovilaseca/symfony,OskarStark/symfony,oleg-andreyev/symfony,HeahDude/symfony,kbond/symfony,stof/symfony,symfony/symfony,mpdude/symfony,jvasseur/symfony,smatyas/symfony,Nyholm/symfony,Deamon/symfony,localheinz/symfony,stof/symfony,chalasr/symfony,oleg-andreyev/symfony,mweimerskirch/symfony,phramz/symfony,lstrojny/symfony,smatyas/symfony,xabbuh/symfony,Taluu/symfony,OskarStark/symfony,damienalexandre/symfony,gonzalovilaseca/symfony,alekitto/symfony,symfony/symfony,Simperfit/symfony,sgehrig/symfony,MatTheCat/symfony,hhamon/symfony,bendavies/symfony,pierredup/symfony,stof/symfony,damienalexandre/symfony,derrabus/symfony,voronkovich/symfony,Tobion/symfony,fabpot/symfony,ragboyjr/symfony,tgalopin/symfony,Slamdunk/symfony,hhamon/symfony,Taluu/symfony,d-ph/symfony,fabpot/symfony,kbond/symfony,ragboyjr/symfony,phramz/symfony,paradajozsef/symfony,zerkms/symfony,zerkms/symfony,kbond/symfony,MatTheCat/symfony,pierredup/symfony