Mark compatible with puppet-extlib 7.x

Author: ekohl

metadata.json

@@ -14,7 +14,7 @@
     },
     {
       "name": "puppet/extlib",
-      "version_requirement": ">= 3.0.0 < 7.0.0"
+      "version_requirement": ">= 3.0.0 < 8.0.0"
     },
     {
       "name": "puppet/trusted_ca",