Merge pull request puppetlabs#1079 from puppetlabs/MODULES-9120

MODULES-9120 - update metadata to support concat version 6.0.0

Author: sheenaajay

metadata.json

@@ -18,7 +18,7 @@
     },
     {
       "name": "puppetlabs/concat",
-      "version_requirement": ">= 1.1.0 < 6.0.0"
+      "version_requirement": ">= 1.1.0 < 7.0.0"
     }
   ],
   "operatingsystem_support": [