fix(recurring-job): flooded source label log (backport #2058)

[mergify]

This is an automatic backport of pull request #2058 done by Mergify.
Cherry-pick of 73e92f7 has failed:

On branch mergify/bp/v1.4.x/pr-2058
Your branch is up to date with 'origin/v1.4.x'.

You are currently cherry-picking commit 73e92f70.
  (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)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   controller/volume_controller.go

no changes added to commit (use "git add" and/or "git commit -a")

Cherry-pick of 2c5b623 has failed:

On branch mergify/bp/v1.4.x/pr-2058
Your branch is ahead of 'origin/v1.4.x' by 1 commit.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit 2c5b6234.
  (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)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   types/setting.go

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[c3y1huang]

No need to backport this since this log is introduced in v1.5.0.

cc @innobead