Add interlock-cb to third-party libraries

[bagowix]

What do these changes do?

Adds interlock-cb to the third-party libraries page. I am the author of interlock-cb.

Are there changes in behavior for the user?

No aiohttp behavior changes. The documentation now points users to an aiohttp client circuit
breaker middleware that maintains one breaker per host and trips on failure rate or slow
responses.

Is it a substantial burden for the maintainers to support this?

No. This is a documentation-only entry for an independently maintained third-party library.

Related issue number

N/A.

Checklist

• I think the code is well written
• Unit tests for the changes exist (N/A: documentation-only change)
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt (N/A: no code modification)
• Add a new news fragment into the CHANGES/ folder

Agent run output

• git diff --check: passed
• .venv/bin/pre-commit run --files docs/third_party.rst: passed
• make doc: passed

Drafted with Codex (GPT-5); reviewed by @bagowix.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.88%. Comparing base (9f42648) to head (f73b660).
⚠️ Report is 2 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #13336      +/-   ##
==========================================
- Coverage   98.98%   98.88%   -0.11%     
==========================================
  Files         132      130       -2     
  Lines       49073    49029      -44     
  Branches     2553     2543      -10     
==========================================
- Hits        48576    48483      -93     
- Misses        373      421      +48     
- Partials      124      125       +1     

Flag	Coverage Δ
Autobahn	?
CI-GHA	98.90% <ø> (ø)
OS-Linux	98.67% <ø> (ø)
OS-Windows	96.94% <ø> (-0.09%)	⬇️
OS-macOS	97.60% <ø> (-0.33%)	⬇️
Py-3.10	98.10% <ø> (-0.02%)	⬇️
Py-3.11	97.75% <ø> (-0.63%)	⬇️
Py-3.12	98.44% <ø> (-0.03%)	⬇️
Py-3.13	97.74% <ø> (-0.71%)	⬇️
Py-3.14	?
Py-3.14t	97.55% <ø> (+<0.01%)	⬆️
Py-pypy-3.11	97.39% <ø> (-0.02%)	⬇️
VM-macos	97.60% <ø> (-0.33%)	⬇️
VM-ubuntu	98.67% <ø> (ø)
VM-windows	96.94% <ø> (-0.09%)	⬇️
cython-coverage	37.90% <ø> (-0.06%)	⬇️

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[webknjaz]

make doc: not run successfully because the existing local development environment is missing myst_parser

Have you tried reading the contrib doc tho?

[webknjaz]

FTR, there's now an ongoing incident w/ GHA, which is why some runners crash: https://www.githubstatus.com/incidents/qcvjkzcs7j74. The maintainers will need to restart the jobs once that outage is over.

[bagowix]

@webknjaz Thanks for the pointer! I followed the contributor setup instructions and ran make doc successfully. I’ve updated the PR description accordingly.