fix(relase): release to npm even if the private is set to true

See https://github.com/semantic-release/npm for details

Author: pxlpnk

package.json

@@ -17,8 +17,10 @@
     "commander": "^2.17.1",
     "joi": "^13.6.0",
     "semantic-release": "^15.9.14"
+    "@semantic-release/git": "^5.0.0",
   },
   "release": {
+    "npmPublish": true,
     "verifyConditions": [
       "@semantic-release/git",
       "@semantic-release/github",