Release 6.7.0

[bdraco]

https://github.com/aio-libs/multidict/actions/runs/18263783596
Minor release to produce 3.14 wheels

[codspeed-hq]

CodSpeed Performance Report

Merging #1251 will not alter performance

_{Comparing bdraco:release/v6.7.0 (dd20e43) with master (d40ee55)}

Summary

✅ 245 untouched

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.85%. Comparing base (d40ee55) to head (dd20e43).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1251   +/-   ##
=======================================
  Coverage   99.85%   99.85%           
=======================================
  Files          26       26           
  Lines        3507     3507           
  Branches      252      252           
=======================================
  Hits         3502     3502           
  Misses          3        3           
  Partials        2        2           

Flag	Coverage Δ
CI-GHA	99.85% <100.00%> (ø)
pytest	99.85% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.