Release: v2.1.1 (#363)

## What's Changed
* security: bump undici from 5.28.2 to 5.28.3 by @dependabot in
#352
* Docs: Added artifact register reader permission required for ci/cd
pipeline by @hawkeye-sama in
#356
* build(deps): bump express from 4.18.2 to 4.19.2 in /example-app by
@dependabot in
#357
* security: bump undici from 5.28.3 to 5.28.4 by @dependabot in
#358
* Default "promote" to true by @sethvargo in
#362

## New Contributors
* @hawkeye-sama made their first contribution in
#356

**Full Changelog**:
v2.1.0...693d553

Author: google-github-actions-bot

dist/index.js

@@ -1,6 +1,6 @@
 {
   "name": "deploy-appengine",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "Github Action: Deploy to Google App Engine",
   "main": "dist/index.js",
   "scripts": {