TASK: adapt new pt_extbase version

Author: kabarakh

composer.json

@@ -12,7 +12,7 @@
   ],
   "require": {
     "typo3/cms-core": ">=6.2.0,<9.0",
-    "punktde/pt_extbase": "^5.0",
+    "punktde/pt_extbase": "^5.0,^6.0",
     "phpoffice/phpexcel": "^1.8",
     "php": ">=7.0.0,<8.0.0"
   },