chore: use public repository metadata

Author: Soengkit

package.json

@@ -15,7 +15,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "git://github.com/node-oauth/express-oauth-server.git"
+    "url": "git+https://github.com/node-oauth/express-oauth-server.git"
   },
   "files": [
     "index.js",