chore: replace deprecated server type with cx22

[jooola]

Learn more: https://docs.hetzner.cloud/changelog#2024-06-06-old-server-types-with-shared-intel-vcpus-are-deprecated

[codecov[bot]]

Codecov Report

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

Project coverage is 33.42%. Comparing base (3fd9031) to head (8e3fdc4).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #195 +/- ## ======================================= Coverage 33.42% 33.42% ======================================= Files 11 11 Lines 694 694 ======================================= Hits 232 232 Misses 437 437 Partials 25 25 ```

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