feat: bump up minor version

Author: igorpupkinable

package.json

@@ -25,7 +25,7 @@
     "test:all": "yarn test && yarn test:functional"
   },
   "main": "build/index.js",
-  "version": "3.0.1",
+  "version": "3.1.1",
   "description": "private npm registry (Verdaccio) using gitlab-ce as authentication and authorization provider",
   "keywords": [
     "sinopia",