ci: relocate changelog update to test release workflow

- Moved `changelog-action` and `CHANGELOG.md` commit steps from `release_and_changelog.yml` to `main_test_release.yml`.

Author: QuadStingray

.github/workflows/main_test_release.yml

@@ -71,7 +71,6 @@ jobs:
         uses: requarks/changelog-action@main
         with:
           token: ${{ github.token }}
-          tag: ${{ github.ref_name }}
 
       - name: Commit CHANGELOG.md
         uses: stefanzweifel/git-auto-commit-action@master