Backport (17.11): Ensure all LFK's are processed regardless of duration

What does this MR do and why?

This is a backport of Ensure all LFK's are processed regardless of du... (!187891 - merged)

Reference: gitlab-org/release/tasks#19180 (comment 2482034210)

Cherry picked from commits:

1. ecdf47df097cbc618b54a89e622293f24da4077d
2. 1c088e4ab0abe85ea206ba2f33f22c3b5267e85d
3. 9995f1ad8331cc6af1dd4e8750ce4a6a86fa43a7

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• This MR is backporting a bug fix, documentation update, or spec fix, previously merged in the default branch.
• The MR that fixed the bug on the default branch has been deployed to GitLab.com (not applicable for documentation or spec changes).
• This MR has a severity label assigned (if applicable).
• Set the milestone of the merge request to match the target backport branch version.
• This MR has been approved by a maintainer (only one approval is required).
• Ensure the e2e:test-on-omnibus-ee job has either succeeded or been approved by a Software Engineer in Test.

Note to the merge request author and maintainer

If you have questions about the patch release process, please:

• Refer to the patch release runbook for engineers and maintainers for guidance.
• Ask questions on the #releases Slack channel (internal only).