[TASK] added license

composer.json

@@ -2,7 +2,7 @@
   "name": "lavitto/typo3-gridgallery",
   "description": "Grid Gallery for TYPO3",
   "type": "typo3-cms-extension",
-  "license": "GPL-2.0-or-later",
+  "license": "GPL-3.0-or-later",
   "authors": [
     {
       "name": "Philipp Mueller",
@@ -10,7 +10,10 @@
     }
   ],
   "repositories": [
-    { "type": "composer", "url": "https://composer.typo3.org/" }
+    {
+      "type": "composer",
+      "url": "https://composer.typo3.org/"
+    }
   ],
   "config": {
     "vendor-dir": ".Build/vendor",