uac: add reload_delta parameter

[devopsec]

Pre-Submission Checklist

• Commit message has the format required by CONTRIBUTING guide
• Commits are split per component (core, individual modules, libs, utils, ...)
• Each component has a single commit (if not, squash them into one commit)
• No commits to README files for modules (changes must be done to docbook files
  in doc/ subfolder, the README file is autogenerated)

Type Of Change

• Small bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would change existing functionality)

Checklist:

• PR should be backported to stable branches
• Tested changes locally
• Related to issue #XXXX (replace XXXX with an open issue number)

Description

Add support for setting a different RPC reload interval than the reg_gc_interval parameter.
This allows the cleanup timer to match the user's re-transmission timeout without constraining RPC reload times to a large interval.

[henningw]

Thanks for the PR. Could you please fix the format by running clang-format on the files and do a force-push to update the individual commit(s)? This check is right now failing.

[devopsec]

Thanks for the PR. Could you please fix the format by running clang-format on the files and do a force-push to update the individual commit(s)? This check is right now failing.

Fixed formatting, let me know if any other changes are needed.

[devopsec]

Morning Team,
Checking in on this PR. Can we get this assigned?