bump version to 2.2.0

[nobodyiam]

What's the purpose of this PR

Updated version to 2.2.0 in preparation for the upcoming release.

Follow this checklist to help us incorporate your contribution quickly and easily:

• [x] Read the Contributing Guide before making this pull request.
• [x] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• [x] Write necessary unit tests to verify the code.
• [x] Run mvn clean test to make sure this pull request doesn't break anything.
• [ ] Update the CHANGES log.

[github-actions[bot]]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[codecov[bot]]

Codecov Report

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

Comparison is base (21259e5) 68.59% compared to head (bef3c13) 68.59%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #46 +/- ## ========================================= Coverage 68.59% 68.59% Complexity 1206 1206 ========================================= Files 171 171 Lines 5196 5196 Branches 561 561 ========================================= Hits 3564 3564 Misses 1371 1371 Partials 261 261 ```

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