ci(.github): publish slsa artifacts to cloudsmith (backport of #10215)

[kumahq]

Automatic cherry-pick of #10215 for branch release-2.6

Generated by action

cherry-picked commit cf9b78d
⚠️ ⚠️ ⚠️ Conflicts happened when cherry-picking! ⚠️ ⚠️ ⚠️

On branch release-2.6
Your branch is up to date with 'origin/release-2.6'.

You are currently cherry-picking commit cf9b78d2b.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   mk/distribution.mk
	modified:   mk/docker.mk

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .github/workflows/_build_publish.yaml
	both modified:   .github/workflows/build-test-distribute.yaml

[saisatishkarra]

NA to 2.6. Closing until further notice of requirement from owner