Add psalm to CI

[franmomu]

this PR adds psalm at level 7 and fixes the issues found, symfony/validator and symfony/security-bundle have been added because they are used:

DoctrineMongoDBBundle/Tests/DependencyInjection/AbstractMongoDBExtensionTest.php

Line 25 in baddc63

use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntityValidator;

which has a dependency on https://github.com/symfony/doctrine-bridge/blob/ed2e5a8a0987e6484ffac544918e1bd3da7ffb1c/Validator/Constraints/UniqueEntityValidator.php#L15-L18

DoctrineMongoDBBundle/Validator/Constraints/Unique.php

Line 7 in baddc63

use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

depends on https://github.com/symfony/doctrine-bridge/blob/ed2e5a8a0987e6484ffac544918e1bd3da7ffb1c/Validator/Constraints/UniqueEntity.php#L14

And for security, we are using:

DoctrineMongoDBBundle/Tests/Fixtures/Security/User.php

Line 9 in 8db802c

use Symfony\Component\Security\Core\User\UserInterface;

DoctrineMongoDBBundle/DoctrineMongoDBBundle.php

Line 16 in 8db802c

use Symfony\Bridge\Doctrine\DependencyInjection\Security\UserProvider\EntityFactory;

which depends on https://github.com/symfony/doctrine-bridge/blob/ed2e5a8a0987e6484ffac544918e1bd3da7ffb1c/DependencyInjection/Security/UserProvider/EntityFactory.php#L14

[malarzm]

I'd love to merge this but despite re-running checks two times I have no clue what's wrong with them

[franmomu]

In the meantime I've ignored the direct deprecation:

Remaining direct deprecation notices (1)

  1x: The "" service relies on the deprecated "Doctrine\Common\Cache\ArrayCache" class. It should either be deprecated or its implementation upgraded.
    1x in ServiceRepositoryTest::testRepositoryServiceWiring from Doctrine\Bundle\MongoDBBundle\Tests

so this will be fixed in #675

[malarzm]

Awesome, thank you @franmomu!