udpate packages for symfony 4#1

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RedwanK wants to merge 3 commits intomasterfrom

feature/symfony-4

Commits on Mar 6, 2020

udpate packages for symfony 4
RedwanK
committed

Commits on Jul 30, 2020

Require integralservice/behat-context with phpunit ^v7.5
jurv
committed

Commits on Jul 31, 2020

Merge pull request #2 from IntegralService/fix/phpunit-version
jurv
authored