Implementable RateLimitPolicy proposal

[bjee19]

Proposed changes

Problem: A design is needed for the RateLimitPolicy.

Solution: Create an implementable RateLimitPolicy enhancement proposal.

Closes #4059

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.28%. Comparing base (421674e) to head (654d2e8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4346      +/-   ##
==========================================
- Coverage   86.33%   86.28%   -0.05%     
==========================================
  Files         132      132              
  Lines       14859    14859              
  Branches       35       35              
==========================================
- Hits        12828    12821       -7     
- Misses       1813     1817       +4     
- Partials      218      221       +3     

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[github-actions]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[bjee19]

Update: going to be scaling back this design to match more closely whats described in the story. Global rate limiting and Conditional rate limiting will be future work.

[sjberman]

Nice work!

[shaun-nx]

Great job Ben! 🚀

I left one other question here. Feel free to resolve that one after you post your reply 😃

[bjee19]

Going to resolve the answered conversations and merge, we can revisit the proposal at any time