chore(main): release 0.20.1

[github-actions[bot]]

:robot: I have created a release beep boop

0.20.1 (2023-12-18)

Bug Fixes

• deps: update dependency prometheus-client to ^0.19.0 (#218) (91f08de)

Documentation

• regenerate changelog (27b4e75)

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[github-actions[bot]]

:robot: Release is at https://github.com/jooola/earhorn/releases/tag/v0.20.1 :sunflower: