Bump puppet-epel to allow 5.x

Author: dandunckelman

metadata.json

@@ -75,7 +75,7 @@
     },
     {
       "name": "puppet/epel",
-      "version_requirement": ">= 3.0.0 < 5.0.0"
+      "version_requirement": ">= 3.0.0 < 6.0.0"
     }
   ]
 }