[CI] Verify RPMs available after release and clean up release stage
Description
This MR:
- Adds a check after the public releases to ensure the RPM is available in the repo
- Removes the three old release stages and moves to a single
release
stage. - Prevents the changelog-related jobs from running in merge request pipelines.
Checklist
-
Documentation reflects the changes made. -
Merge Request title is clear, concise, and suitable as a changelog entry. See this link
References
Closes #1210 (closed) Closes #
Edited by Niels Alexander Buegel