Merge pull request #421 from voxpupuli/add-openvox

metadata.json: Add OpenVox

metadata.json

@@ -85,6 +85,10 @@
     {
       "name": "puppet",
       "version_requirement": ">= 7.0.0 < 9.0.0"
+    },
+    {
+      "name": "openvox",
+      "version_requirement": ">= 7.0.0 < 9.0.0"
     }
   ]
 }