IBX-12654: Enabled the PHPStan strict rule for dynamic calls to static methods

[bnowak]

🎫 Issue	IBX-12654

Related PRs (63 consumer PRs, must merge before this one):

• IBX-12654: Fixed dynamic calls to static methods admin-ui#2105
• https://github.com/ibexa/calendar/pull/110
• https://github.com/ibexa/cart/pull/190
• https://github.com/ibexa/checkout/pull/241
• https://github.com/ibexa/collaboration/pull/130
• https://github.com/ibexa/connector-ai/pull/230
• https://github.com/ibexa/connector-openai/pull/102
• https://github.com/ibexa/connector-payum/pull/49
• https://github.com/ibexa/connector-qualifio/pull/71
• https://github.com/ibexa/connect/pull/78
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods content-forms#126
• https://github.com/ibexa/content-tree/pull/141
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods core-persistence#49
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods core#839
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods core-search#29
• https://github.com/ibexa/corporate-account-commerce-bridge/pull/29
• https://github.com/ibexa/corporate-account/pull/391
• https://github.com/ibexa/dashboard/pull/207
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods design-engine#48
• https://github.com/ibexa/discounts-codes/pull/66
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods doctrine-schema#53
• https://github.com/ibexa/elasticsearch/pull/86
• https://github.com/ibexa/fastly/pull/58
• https://github.com/ibexa/fieldtype-address/pull/83
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods fieldtype-matrix#107
• https://github.com/ibexa/fieldtype-page/pull/235
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods fieldtype-richtext#356
• https://github.com/ibexa/form-builder/pull/266
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods graphql#109
• https://github.com/ibexa/headless-assets/pull/31
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods http-cache#95
• https://github.com/ibexa/image-editor/pull/153
• https://github.com/ibexa/image-picker/pull/155
• https://github.com/ibexa/installer/pull/228
• https://github.com/ibexa/measurement/pull/155
• https://github.com/ibexa/migrations/pull/464
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods notifications#36
• https://github.com/ibexa/oauth2-client/pull/53
• https://github.com/ibexa/order-management/pull/209
• https://github.com/ibexa/page-builder/pull/631
• https://github.com/ibexa/payment/pull/223
• https://github.com/ibexa/personalization/pull/433
• IBX-12654: Enabled the PHPStan strict rule for dynamic calls to static methods #16
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods post-install#111
• https://github.com/ibexa/product-catalog-date-time-attribute/pull/71
• https://github.com/ibexa/product-catalog/pull/1602
• https://github.com/ibexa/product-catalog-symbol-attribute/pull/34
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods rest#241
• https://github.com/ibexa/scheduler/pull/191
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods search#74
• https://github.com/ibexa/segmentation/pull/242
• https://github.com/ibexa/seo/pull/77
• https://github.com/ibexa/share/pull/210
• https://github.com/ibexa/shipping/pull/175
• https://github.com/ibexa/site-context/pull/175
• https://github.com/ibexa/site-factory/pull/203
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods solr#124
• IBX-12654: Fixed dynamic calls to static methods system-info#97
• https://github.com/ibexa/taxonomy/pull/459
• IBX-12654: Fixed dynamic calls to static methods twig-components#34
• IBX-12654: Added ibexa/phpstan and fixed dynamic calls to static methods user#151
• https://github.com/ibexa/version-comparison/pull/146
• https://github.com/ibexa/workflow/pull/213

Not included: ibexa/activity-log already ships the full phpstan-strict-rules set (this rule was already active there with 0 hits, no PR needed). ibexa/jms-translation-bundle is blocked on a separate Symfony 7.4/8.0 dependency conflict and needs a decision before it can be adjusted.

Description:

Enables the phpstan/phpstan-strict-rules check for dynamic calls to static methods (staticMethod.dynamicCall) in the shared Ibexa ruleset by registering PHPStan\Rules\StrictCalls\DynamicCallOnStaticMethodsRule and PHPStan\Rules\StrictCalls\DynamicCallOnStaticMethodsCallableRule under rules: in extension.neon.

Because the rule classes now ship as part of the extension, phpstan/phpstan-strict-rules moves from require-dev to require, so every consumer of ibexa/phpstan gets them installed.

The consumer packages are fixed first (their PRs replace $this->assertX()-style calls and static test helpers with self::/ClassName:: calls); this PR merges last, once those are in, so their CI stays green when this rule is released. The package's own PHPStan run, test suite and code style check pass with the change, and the rule was verified to report Dynamic call to static method Foo::bar(). when analysing a throwaway fixture through extension.neon.

For QA:

No functional change. CI (PHPStan, code style, unit tests) is the verification.

Documentation:

No client-facing impact.

[konradoboza]

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