[BUGFIX] Use the correct return type for method copyRecord_raw

DataHandler->copyRecord_raw can also return null.
This should be reflected in the doc header as well.

Resolves: #102098
Releases: main, 12.4, 11.5
Change-Id: Ic7a12233efd32b67f0bf25d6478a03f807a5623e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81353
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

Build/phpstan/phpstan-baseline.neon

@@ -700,11 +700,6 @@ parameters:
 			count: 1
 			path: ../../typo3/sysext/core/Classes/DataHandling/DataHandler.php
 
-		-
-			message: "#^Method TYPO3\\\\CMS\\\\Core\\\\DataHandling\\\\DataHandler\\:\\:copyRecord_raw\\(\\) should return int but returns null\\.$#"
-			count: 4
-			path: ../../typo3/sysext/core/Classes/DataHandling/DataHandler.php
-
 		-
 			message: "#^Method TYPO3\\\\CMS\\\\Core\\\\DataHandling\\\\DataHandler\\:\\:doesPageHaveUnallowedTables\\(\\) should return array\\|bool but returns string\\.$#"
 			count: 1

typo3/sysext/core/Classes/DataHandling/DataHandler.php

@@ -3594,7 +3594,7 @@ public function copySpecificPage($uid, $destPid, $copyTablesArray, $first = fals
      * @param int $pid Element PID (real PID, not checked)
      * @param array $overrideArray Override array - must NOT contain any fields not in the table!
      * @param array $workspaceOptions Options to be forwarded if actions happen on a workspace currently
-     * @return int Returns the new ID of the record (if applicable)
+     * @return int|null Returns the new ID of the record (if applicable)
      * @internal should only be used from within DataHandler
      */
     public function copyRecord_raw($table, $uid, $pid, $overrideArray = [], array $workspaceOptions = [])