package: fix repository link

Author: iarna

package.json

@@ -4,7 +4,7 @@
   "description": "Client for the npm registry",
   "version": "7.0.7",
   "repository": {
-    "url": "git://github.com/isaacs/npm-registry-client"
+    "url": "https://github.com/npm/npm-registry-client.git"
   },
   "main": "index.js",
   "scripts": {