fix: normalizing repository url (#414)

Author: pacostas

package.json

@@ -3,7 +3,7 @@
   "version": "3.0.1",
   "repository": {
     "type": "git",
-    "url": "https://github.com/nodeshift/faas-js-runtime.git"
+    "url": "git+https://github.com/nodeshift/faas-js-runtime.git"
   },
   "author": "Red Hat, Inc.",
   "license": "Apache-2.0",