[TASK] Add PHP 8.5 to version matrix on TYPO3 13

TYPO3 13 supports PHP 8.5 as well.

Following changes are required for PHP 8.5:

- Classes/Domain/Index/IndexService.php:
  - Add null check for $rootPageId before array offset access

- Classes/Domain/Search/ResultSet/Facets/OptionBased/Hierarchy/HierarchyFacet.php:
  - Add null check for $parentKey before array offset access

- Tests/Unit/GarbageCollectorTest.php:
  - Remove deprecated setAccessible(true) call (no effect since PHP 8.1)

Author: dkd-kaehm

.github/workflows/ci-matrix.json

@@ -1,6 +1,6 @@
 {
   "release-13.1.x": {
-    "PHP": [ "8.2", "8.3", "8.4" ],
+    "PHP": [ "8.2", "8.3", "8.4", "8.5" ],
     "TYPO3": [ "13" ,"13.4.x-dev" ]
   }
 }

Classes/Domain/Index/IndexService.php

@@ -237,6 +237,10 @@ protected function initializeHttpServerEnvironment(Item $item): void
     {
         static $hosts = [];
         $rootPageId = $item->getRootPageUid();
+        if ($rootPageId === null) {
+            return;
+        }
+
         $hostFound = !empty($hosts[$rootPageId]);
 
         if (!$hostFound) {

Classes/Domain/Search/ResultSet/Facets/OptionBased/Hierarchy/HierarchyFacet.php

@@ -65,7 +65,7 @@ public function createNode(
         bool $selected,
     ): void {
         /** @var Node|null $parentNode */
-        $parentNode = $this->nodesByKey[$parentKey] ?? null;
+        $parentNode = $parentKey !== null ? ($this->nodesByKey[$parentKey] ?? null) : null;
         /** @var Node $node */
         $node = GeneralUtility::makeInstance(
             Node::class,

Tests/Unit/GarbageCollectorTest.php

@@ -167,7 +167,6 @@ public function processDatamap_preProcessFieldArrayStoresRecordData(): void
 
         $objectReflection = new ReflectionObject($this->garbageCollector);
         $property = $objectReflection->getProperty('trackedRecords');
-        $property->setAccessible(true);
         $trackedRecords = $property->getValue($this->garbageCollector);
 
         self::assertEquals($dummyRecord, $trackedRecords['tx_foo_bar'][123]);