[stable27] workflow update

[come-nc]

Did not backport the migration away from drone as it’s too big, but the rest of the workflows can be aligned.

[come-nc]

/backport to stable26

[backportbot]

The backport to stable26 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable26
git pull origin stable26

# Create the new backport branch
git checkout -b backport/689/stable26

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 86c562f0

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/689/stable26

Error: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.