deploy-cloudrun Add support for updating the image of a specific container in a Cloud Run service

TL;DR

Nowadays you can setup multi-container deployments in Cloud Run.

This feature request is to add a new param (container?) to allow updating the image of any container in a deployment.

Say you have a Cloud Run service called TestService1, that has 3 containers: nginx, cms, metrics.

To update the image of the cms container I would like do something along:

      - name: Update Cloud Run service
        id: gcloud-cloudrun
        uses: google-github-actions/deploy-cloudrun@v2
        with:
          image: path/to/image:tag
          service: 'TestService1'
          container: 'cms'
          project_id: ${{ env.GCP_PROJECT }}
          region: ${{ env.GCP_REGION }}
          revision_traffic: 'LATEST=100'

The expectation would be that only the image for the specific container in the service would be updated.

Thanks!