[TASK] Raise recommended max nesting level

Raise recommended max nesting level to 400 as 
the current value of 250 does not suffice.

Resolves: #59391
Releases: 6.3, 6.2
Change-Id: Ibccb61991809e24baddb21bd46f190cd0b8d907d
Reviewed-on: https://review.typo3.org/30608
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Markus Klein
Tested-by: Markus Klein

typo3/sysext/install/Classes/SystemEnvironment/Check.php

@@ -511,7 +511,7 @@ class Check {
 	 */
 	protected function checkXdebugMaxNestingLevel() {
 		if (extension_loaded('xdebug')) {
-			$recommendedMaxNestingLevel = 250;
+			$recommendedMaxNestingLevel = 400;
 			$currentMaxNestingLevel = ini_get('xdebug.max_nesting_level');
 			if ($currentMaxNestingLevel < $recommendedMaxNestingLevel) {
 				$status = new Status\ErrorStatus();