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

• Updated docs with newer server types

[codecov[bot]]

Codecov Report

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

Project coverage is 76.32%. Comparing base (e61a3b3) to head (83b5991).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #658 +/- ## ======================================= Coverage 76.32% 76.32% ======================================= Files 21 21 Lines 2281 2281 ======================================= Hits 1741 1741 Misses 362 362 Partials 178 178 ```

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