Version bump to v0.22.0

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 81.69%. Comparing base (13125ed) to head (ebec480). Report is 64 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1666 +/- ## ========================================== - Coverage 81.71% 81.69% -0.02% ========================================== Files 98 98 Lines 7486 7486 ========================================== - Hits 6117 6116 -1 - Misses 1369 1370 +1 ``` | [Flag](https://app.codecov.io/gh/delvtech/agent0/pull/1666/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/delvtech/agent0/pull/1666/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | `81.69% <ø> (-0.02%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech#carryforward-flags-in-the-pull-request-comment) to find out more.

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