Override the date type in EntityColumnRuleTest for every data set

[SanderMuller]

EntityColumnRuleTest::testRuleWithAllowedNullableProperty fails when its data set #1 (no object manager) runs before data set #0 (entity-manager.php). It reports an extra error:

49: Property PHPStan\Rules\Doctrine\ORM\MyBrokenEntity::$six type mapping mismatch: database can contain DateTime but property expects DateTimeImmutable.

entity-manager.php calls Type::overrideType('date', DateTimeImmutableType::class) for the whole process. The expected errors of the data sets without an object manager assume that override. These data sets only get it when a test that loads entity-manager.php ran before them. With executionOrder="random", that depends on the seed. This change sets the same override in getRule(), so every data set starts with the same type.

I saw the failure in the extension tests of phpstan/phpstan-src#6733 (seed 1791793640). I ran the test alone with seeds 1 to 8. Before this change, it failed for the 5 seeds that run data set #1 first. After the change, it passed for all 8.

🤖 Generated with Claude Code

[SanderMuller]

The red jobs are not from this change. Unchanged 2.0.x (7c51d06) fails the same 9 jobs today: https://github.com/SanderMuller/phpstan-doctrine/actions/runs/38228877932

• The PHPStan (...) jobs report DoctrineSelectableDynamicReturnTypeExtensionTest.php:62 (Parameter #3 $scope).
• Tests (8.3, highest, ...) and the PHPStan (8.3, ...) job with ORM 3 also fail on the Renovate run on 2.1.x from today.