GCE CloudSQL proxy - fix exposed ports

Author: alikbo

Diff for: action.yml

@@ -37,6 +37,7 @@ runs:
 
         # start container
         docker run -d --name gce-cloudsql-proxy --restart on-failure \
+        -p ${{ inputs.port }}:${{ inputs.port }} \
         -v /tmp/gce-cloudsql-proxy:/tmp/gce-cloudsql-proxy \
         gcr.io/cloudsql-docker/gce-proxy:${{ inputs.proxy_version }} \
         /cloud_sql_proxy \