fix(package): update @octokit/auth-oauth-app to version 3.0.0 (#18)

BREAKING CHANGE: `@octokit/auth-oauth-app` no longer accepts a `url` option for `auth()`, it no longer sets `:client_id` or `:access_token` URL parameters, and exclusively authenticates using basic auth, not using query parameters. See: https://github.com/octokit/auth-oauth-app.js/releases/tag/v3.0.0

Author: greenkeeper[bot]

package-lock.json

@@ -30,7 +30,7 @@
     "@octokit/auth-action": "^1.1.0",
     "@octokit/auth-app": "^2.4.0",
     "@octokit/auth-basic": "^1.3.0",
-    "@octokit/auth-oauth-app": "^2.2.0",
+    "@octokit/auth-oauth-app": "^3.0.0",
     "@octokit/auth-token": "^2.4.0"
   },
   "devDependencies": {