Release: v3.0.6 (#442)

## What's Changed
* feat: add publish workflow by @verbanicm in
#436
* Release: v3.0.6 by @google-github-actions-bot in
#437
* fix: publish and release process by @verbanicm in
#438
* fix: downgrade version by @verbanicm in
#439
* Release: v3.0.6 by @google-github-actions-bot in
#440
* fix: release and publish by @verbanicm in
#441


**Full Changelog**:
v3.0.5...d00eb05

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google-github-actions/deploy-cloud-functions",
-  "version": "3.0.5",
+  "version": "3.0.6",
   "description": "Deploy a Cloud Function",
   "main": "dist/index.js",
   "scripts": {