chore(deps): bump elgohr/Publish-Docker-Github-Action from 2.21 to 2.22

Bumps [elgohr/Publish-Docker-Github-Action](https://github.com/elgohr/Publish-Docker-Github-Action) from 2.21 to 2.22.
- [Release notes](https://github.com/elgohr/Publish-Docker-Github-Action/releases)
- [Commits](elgohr/Publish-Docker-Github-Action@2.21...b1253b2)

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/publish.yaml

@@ -15,7 +15,7 @@ jobs:
       run: echo ::set-output name=redis_version::$(grep '^FROM redis' Dockerfile | cut -d ' ' -f 2 | cut -d ':' -f 2)
     - run: echo "Pushing version ${{ steps.vars.outputs.redis_version }}"
     - name: Publish to Registry
-      uses: elgohr/Publish-Docker-Github-Action@2.21
+      uses: elgohr/Publish-Docker-Github-Action@2.22
       with:
         registry: docker.pkg.github.com
         name: "ironpeakservices/iron-redis/iron-redis:${{ steps.vars.outputs.redis_version }}"