Issue #3434864: D11/D12 hook class migration and core_version_requirement update

wouters_frequested to merge
3434864-d11-d12-hooks into 3.0.x

Fixes #3434864

  • Creates src/Hook/SystemStatusHooks.php with #[Hook(help)] using the correct D10+ hook_help signature
  • Updates system_status.module with #[LegacyHook] delegation and corrected signature
  • Registers hook class in system_status.services.yml with autowire: true
  • Updates core_version_requirement from ^8.8 || ^9 || ^10 to ^10.3 || ^11 || ^12

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