* CLDC-2563: Update prod deployment pipeline
* CLDC-2563: remove redundant REPO_URL assignment
* CLDC-2563: use GITHUB_OUTPUT only where necessary
* CLDC-2563: don't push image if tag already exists
* CLDC-2563: actually use github.sha for production as well
* CLDC-2563: remove obsolete env check in push docker image job
* CLDC-2563: remove redundant main branch check