Issue #3164089 by harishh: License "GPL-2.0+" is a deprecated SPDX license...

Issue #3164089 by harishh: License "GPL-2.0+" is a deprecated SPDX license identifier, use "GPL-2.0-or-later" instead

composer.json

@@ -15,6 +15,6 @@
     "irc": "irc://irc.freenode.org/drupal-contribute",
     "source": "http://git.drupal.org/project/pluginreference.git"
   },
-  "license": "GPL-2.0+",
+  "license": "GPL-2.0-or-later",
   "minimum-stability": "dev"
 }