Add checkFunctionArgumentTypes parameter to phpstan config

I think it needs a rebase. I generated the baseline from main then compared with this branch and found one additional entry that I think is no longer required since #3555534: Since symfony/validator 7.4: Support for evaluating options in the base Constraint class is deprecated. Initialize properties in the constructor instead.

+++ b/core/.phpstan-baseline.php
@@ -6253,6 +6253,12 @@
        'count' => 1,
        'path' => __DIR__ . '/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php',
 ];
+$ignoreErrors[] = [
+       'message' => '#^Parameter \\#2 \\$options of method Drupal\\\\Core\\\\TypedData\\\\DataDefinition\\:\\:addConstraint\\(\\) expects array\\|null, string given\\.$#',
+       'identifier' => 'argument.type',
+       'count' => 1,
+       'path' => __DIR__ . '/lib/Drupal/Core/Entity/TypedData/EntityDataDefinition.php',
+];
 $ignoreErrors[] = [
        'message' => '#^Method Drupal\\\\Core\\\\EventSubscriber\\\\ActiveLinkResponseFilter\\:\\:onResponse\\(\\) has no return type specified\\.$#',
        'identifier' => 'missingType.return',

Let's finish up #3561385: Fix "expects FieldableEntityInterface" issues detected by phpstan then reroll this. Can see then if we want to work on more fixes before committing the baseline.

Rerolled this. It was 446 errors when mondrake first submitted the MR. It's now down to 223, although some of them have multiple counts in the same file, so I'm not sure whether those were originally counted.

Merged in main as there were existing merge commits and regenerated the baseline. Setting back to RTBC.