[FIX] FATAL errors on low level processes

Fixes FATAL errors on:
* `typo3 extension:setup` command
* `typo3 cache:flush` command
* BE->Maintenance->flush cache action

Relates: #4519

Author: dkd-kaehm

Classes/Domain/Index/Queue/UpdateHandler/DataUpdateHandler.php

@@ -557,8 +557,8 @@ protected function updateCanonicalPages(int $pageId): void
      */
     protected function getValidatedPid(string $table, int $uid): ?int
     {
-        $pid = $this->dataHandler->getPID($table, $uid);
-        if ($pid === false) {
+        $pid = (int)(BackendUtility::getRecord($table, $uid, 'pid', '', false)['pid'] ?? 0);
+        if ($pid === 0) {
             $message = 'Record without valid pid was processed ' . $table . ':' . $uid;
             $this->logger->warning($message);
             return null;

Classes/IndexQueue/RecordMonitor.php

@@ -139,7 +139,7 @@ public function processDatamap_afterDatabaseOperations(
 
         $recordPid = $fields['pid'] ?? null;
         if (is_null($recordPid) && MathUtility::canBeInterpretedAsInteger($recordUid)) {
-            $recordInfo = $tceMain->recordInfo($table, (int)$recordUid);
+            $recordInfo = BackendUtility::getRecord($table, (int)$recordUid, '*', '', false);
             if (!is_null($recordInfo)) {
                 $recordPid = $recordInfo['pid'] ?? null;
             }

Classes/ViewHelpers/SearchFormViewHelper.php

@@ -82,9 +82,8 @@ public function initializeArguments(): void
      * Renders search form-tag
      *
      * @throws AspectNotFoundException
-     * @noinspection PhpMissingReturnTypeInspection
      */
-    public function render()
+    public function render(): string
     {
         /** @var RequestInterface $request */
         $request = $this->renderingContext->getAttribute(ServerRequestInterface::class);