[cleanup][build] Remove docker build and publish scripts

[cbornet]

Motivation

Those scripts are not used anymore in the release process

Verifying this change

• Make sure that the change passes the CI checks.

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository:

[tisonkun]

@cbornet Thanks for your contribution! As you mark this PR as doc-complete, can you share the related doc page or change set?

[nodece]

I suggest that we should update the build and publish scripts instead of removing them.

[lhotari]

I suggest that we should update the build and publish scripts instead of removing them.

+1. In addition, it is necessary to handle existing maintenance branches. Otherwise, the "latest" tag will always point to the image that was published last. That should be prevented.

[cbornet]

Closing this one as we will update the scripts instead.

[nodece]

See #20462