chore(deps): bump metrics from 0.20.1 to 0.21.1

[dependabot]

Bumps metrics from 0.20.1 to 0.21.1.

Commits

• 0ffcc48 (cargo-release) version 0.21.1
• deead8b (cargo-release) version 0.15.1
• 9d141d1 pin hashbrown to avoid MSRV bump
• 4ba145f changelog
• 61580c0 bump deps + clippy stuff
• c04028c Add Borrow impl to KeyName (#381)
• c282e44 changelog
• 20d207f Impl From<std::borrow::Cow> for KeyName (#378)
• a4b2fc1 Update aho-corasick to 1.0.
• c15c0ed feat(util): new helper type for recovering recorder after installing it (#362)
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #132 (a820b14) into main (7192487) will increase coverage by 1.01%.
Report is 17 commits behind head on main.
The diff coverage is n/a.

❗ Current head a820b14 differs from pull request most recent head 37675df. Consider uploading reports for the commit 37675df to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #132      +/-   ##
========================================
+ Coverage   7.70%   8.72%   +1.01%     
========================================
  Files         50      45       -5     
  Lines       1779    1571     -208     
  Branches    1106     965     -141     
========================================
  Hits         137     137              
+ Misses      1545    1337     -208     
  Partials      97      97              

see 12 files with indirect coverage changes

[QuinnWilton]

Obsoleted by #138

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.