Merge tag '4.0.0' into develop

Compatiblity with TYPO3 11.x

Changes in regard of PHP 7.4
Cleanup after checks with rector, phpstan and php-cs-fixer

Author: garbast

composer.json

@@ -21,7 +21,7 @@
 		"ext-simplexml": "*",
 		"ext-libxml": "*",
 
-		"typo3/cms-core": "^11.0.0",
+		"typo3/cms-core": "^11.0",
 		"typo3/cms-extbase": "*",
 		"typo3/cms-fluid": "*",
 		"typo3/cms-extensionmanager": "*",