Tagging strategy on Docker Hub

[crazy-max]

Atm we are pushing 2 tags when we release a package in the following form:

packaging/.github/workflows/.release.yml

Lines 148 to 149 in 12aee5e

	type=raw,value=${{ env.GIT_TAG }}
	type=raw,value=${{ env.GIT_TAG }}-${{ github.run_number }}

For example: https://hub.docker.com/r/dockereng/packaging/tags?page=1&name=docker-engine-v23.0.0-rc.2

As suggested by @thaJeztah we should also have a tag with the commit like docker-engine-v23.0.0-rc.2-abcd123

For ngihtly builds we are using a pseudo-version already: https://hub.docker.com/r/dockereng/packaging/tags?page=1&name=nightly-docker-engine