fix(docker): remove build main action

[oguzkaganozt]

Description

To simplify CI-CD pipeline ,build-main and build-main-self-hosted can be deleted because they are simply using the same docker build mechanism as docker-build-main and docker-build-main-self-hosted.

Also renaming of:

• docker-build-and-push-main -> docker-build-main
• docker-build-and-push-main-self-hosted -> docker-build-main-self-hosted

can be done since docker builds does not pushes every time into the registry the naming implies false positive.

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

Interface changes

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