Fix TYPO3 v11 support in composer.json

* change typo3 version to 11.5

Taken from fullstackfreelancer#1

Author: vnc-stel

composer.json

@@ -25,7 +25,7 @@
     },
     "license": "GPL-3.0-or-later",
     "require": {
-        "typo3/cms-core": "^11.8 || ^12.0"
+        "typo3/cms-core": "^11.5 || ^12.0"
     },
     "keywords": [
         "TYPO3",