Merge pull request #560 from puppetlabs/maint_concat_fix

(maint) fix concat version in metadata.json

Author: jordanbreen28

metadata.json

@@ -14,7 +14,7 @@
     },
     {
       "name": "puppetlabs/concat",
-      "version_requirement": ">= 1.2.3 < 9.0.0"
+      "version_requirement": ">= 1.2.3 < 10.0.0"
     }
   ],
   "operatingsystem_support": [