minor #678 update PHPUnit configuration (add XSD, remove defaults, proper formatting) (craue)
minor #678 update PHPUnit configuration (add XSD, remove defaults, proper formatting) (craue)

This PR was merged into the 2.3 branch.

Discussion
----------

update PHPUnit configuration (add XSD, remove defaults, proper formatting)

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

See symfony/symfony#11344.

Commits
-------

324692e updated PHPUnit configuration (added XSD, removed defaults, proper formatting)

AlexeyKupershtokh/symfony-standard,dunglas/symfony-standard,OskarStark/symfony-standard,zanderbaldwin/symfony-layers,stof/symfony-standard,black-project/black-standard,papaavola/symfony-standard,phospr/symfony-starter,lyrixx/symfony-standard,wachterjohannes/sulu-standard,kosintwong/symfony_test,orodsem/trout,apnet/symfony-standard-edition,liip-forks/symfony-standard,twisted-socket/stage-plots,GulDmitry/music-diff,HasClass0/standard-edition,spolischook/standard-edition,unewochialat/symfony-standard,ovelasquez/ussi,continuousphp/symfony-skeleton,ucsf-ckm/symfony-emberjs-edition,ovelasquez/ussi,MatthieuCutin/ligue-squash,aerrasti/iemedebe,jakzal/symfony-standard,egeloen/symfony-standard,skafandri/blog,Clastic/StandardEdition,ctrl-f5/symfony-standard,Cartesia/01,proteichik/testApp,GulDmitry/music-diff,fahadonline/sulu,RuntyCybin/symfony-standard,trsteel88/symfony-standard,mkrauser/symfony-dump-demo,gencer/symfony-standard,NoUseFreak/StandardEdition,WolfMicrosystems/symfony-wms,symfony/symfony-standard,fahadonline/sulu,MatthieuCutin/ligue-squash,Ocramius/symfony-standard,kmelia/fresh-symfony,Spea/symfony-standard,dkarvounaris/symfony-standard,bamarni/symfony-docker,Clastic/StandardEdition,spolischook/standard-edition,yelmontaser/symfony-standard,stof/symfony-standard,WolfMicrosystems/symfony-wms,symfony-cmf/standard-edition,debruyne0/symfony,kmelia/fresh-symfony,fduch/symfony-standard-workflow,continuousphp/symfony-skeleton,HasClass0/standard-edition,Tobion/symfony-standard,formapro-forks/api-basic,umpirsky/symfony-standard,SymfonyId/Skeleton,b00giZm/symfony-boilerplate-app,theodo/theodo-kata,xiaobudongzhang/symfony-standard,RuntyCybin/symfony-standard,trsteel88/symfony-standard,the-software-factory/superhero-api,xabbuh/symfony-standard,the-software-factory/superhero-api,havvg/symfony-standard-propel,phospr/symfony-starter,NoUseFreak/StandardEdition,Baachi/symfony-standard,bamarni/symfony-docker,tristanbes/symfony-standard,continuousphp/symfony-skeleton,mweimerskirch/symfony-standard,shadowtje1990/symfony_todo_api,bocharsky-bw/symfony-standard,pjcdawkins/tmp-symfony-demo,AlexeyKupershtokh/symfony-standard,papaavola/symfony-standard,lyrixx/symfony-standard,ewgRa/symfony-standard,jbdelhommeau/symfony-standard,sulu-io/sulu-standard,umpirsky/symfony-standard,bocharsky-bw/symfony-standard,bionic-university/alexander-pobereznichenko,Soullivaneuh/symfony-standard,Spea/symfony-standard,simonjcarr/symfony_rest,havvg/symfony-propel-edition,dunglas/symfony-standard,skafandri/blog,rajkamalganeshvivid/symfony-standard,ucay/Skeleton,platformsh/platformsh-example-symfony,mweimerskirch/symfony-standard,by-examples/symfony-standard,Cartesia/01,Tobion/symfony-standard,jakzal/symfony-standard,fahadonline/sulu,IgorTimoshenko/symfony-standard-requirejs,vincentaubert/symfony-standard,unewochialat/symfony-standard,ucay/Skeleton,chrisciampoli/cleats,orodsem/trout,dkarvounaris/symfony-standard,shamcode/symfony-testing,we-bridge/symfony-admin,SymfonyId/Skeleton,havvg/symfony-propel-edition,ucay/Skeleton,Cartesia/01,shamcode/symfony-testing,tristanbes/symfony-standard,Soullivaneuh/symfony-standard,javiereguiluz/symfony-standard,taylankasap/symfony-standard,xiaobudongzhang/symfony-standard,1ed/symfony-standard,vincentaubert/symfony-standard,vincentchalamon/phpunit-bridge,kmelia/fresh-symfony,aprezcuba24/symfony-standard,continuousphp/symfony-skeleton,aerrasti/iemedebe,shadowtje1990/symfony_todo_api,fahadonline/sulu,b00giZm/symfony-boilerplate-app,vincentchalamon/phpunit-bridge,black-project/black-standard,Baachi/symfony-standard,Chill-project/Standard,yhoiseth/notelite.net,irro/MastoAlliance,ewgRa/symfony-standard,proteichik/testApp,symfony/symfony-standard,NoUseFreak/StandardEdition,GulDmitry/music-diff,ybutb/videotask,ovelasquez/ussi,elcodi/symfonycon-demo,Clastic/StandardEdition,platformsh/platformsh-example-symfony,HumanBooster/Symfony,uttam-vi/pardawala,pjcdawkins/tmp-symfony-demo,formapro-forks/api-basic,javiereguiluz/symfony-standard,wachterjohannes/sulu-standard,bshaffer/symfony-standard,Rvanlaak/symfony-standard,apnet/symfony-standard-edition,sulu-io/sulu-standard,taylankasap/symfony-standard,FLM/uberstrap,GulDmitry/music-diff,zanderbaldwin/symfony-layers,yhoiseth/notelite.net,fabpot/symfony-standard,ucsf-ckm/symfony-emberjs-edition,fduch/symfony-standard-workflow,symfony-cmf/standard-edition,mayeco/symfony-standard-pagodabox,sulu-io/sulu-standard,ctrl-f5/symfony-standard,glavweb/symfony-standard,0mars/symfony-standard-issue-13291,yelmontaser/symfony-standard,uttam-vi/pardawala,uttam-vi/pardawala,apnet/symfony-standard-edition,rajkamalganeshvivid/symfony-standard,propelorm/symfony-propel-edition,debruyne0/symfony,glavweb/symfony-standard,irro/MastoAlliance,simonjcarr/symfony_rest,fabpot/symfony-standard,havvg/symfony-standard-propel,OskarStark/symfony-standard,jbdelhommeau/symfony-standard,b00giZm/symfony-boilerplate-app,gencer/symfony-standard,theodo/theodo-kata,propelorm/symfony-propel-edition,Chill-project/Standard,UxorialRook/symfony-standard,ybutb/videotask,egeloen/symfony-standard,UxorialRook/symfony-standard,SymfonyId/api-platform,wachterjohannes/sulu-standard,bshaffer/symfony-standard,liip-forks/symfony-standard,twisted-socket/stage-plots,IgorTimoshenko/symfony-standard-requirejs,orodsem/trout