update license

Author: falkenhawk

composer.json

@@ -9,7 +9,7 @@
         "database"
     ],
     "homepage": "http://www.doctrine-project.org",
-    "license": "LGPL",
+    "license": "LGPL-2.1-or-later",
     "authors": [
         {"name": "Konsta Vesterinen", "email": "[email protected]"},
         {"name": "Jonathan Wage", "email": "[email protected]"}