feat(dockerfiles) docker images versionning

[trouaux]

1. extracting version from LABEL of Dockerfile
2. check if version is already present in image repository
3. stop workflow if bump is required

[kengou]

Versioning is done via tagging, if you push a tag a new image will be created via that tag.
I don't see the benefit of manually maintaining it inside the docker image

greenhouse-extensions/.github/workflows/docker-build.yaml

Lines 5 to 11 in 7e75524

	push:
	branches:
	- main
	paths:
	- Dockerfile.*
	tags:
	- v*.*.*

[trouaux]

Versioning is done via tagging, if you push a tag a new image will be created via that tag. I don't see the benefit of manually maintaining it inside the docker image

greenhouse-extensions/.github/workflows/docker-build.yaml

Lines 5 to 11 in 7e75524

	push:
	branches:
	- main
	paths:
	- Dockerfile.*
	tags:
	- v*.*.*

got it thanks for the review, we will start using tags