tests(clustering): start/stop when incremental on

[chronolaw]

Summary

KAG-5749

Checklist

• The Pull Request has tests
• A changelog file has been created under changelog/unreleased/kong or skip-changelog label added on PR if changelog is unnecessary. README.md
• There is a user-facing docs PR against https://github.com/Kong/docs.konghq.com - PUT DOCS PR HERE

Issue reference

Fix #[issue number]

[chobits]

Cool, we fixed this case now, I remember we already have a kag to track this test case before.

[team-gateway-bot]

Cherry-pick failed for master, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally.

git remote add upstream https://github.com/kong/kong-ee
git fetch upstream master
git worktree add -d .worktree/cherry-pick-13852-to-master-to-upstream upstream/master
cd .worktree/cherry-pick-13852-to-master-to-upstream
git checkout -b cherry-pick-13852-to-master-to-upstream
ancref=$(git merge-base 7e9dbf99f1dc577556e9dba07d739883939ae22d 6c8f3a44dec16fd83c06e65116de1fdd76b7ff03)
git cherry-pick -x $ancref..6c8f3a44dec16fd83c06e65116de1fdd76b7ff03