Update to CardinalKit 0.2.1

[PSchmiedmayer]

Update to CardinalKit 0.2.1

:recycle: Current situation & Problem

CardinalKit 0.2.0 included a problem that the release build did not pass.

:bulb: Proposed solution

Update CardinalKit to version 0.2.1.

Code of Conduct & Contributing Guidelines

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• [x] I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@de2aeb8). Click here to learn what that means. The diff coverage is n/a.

:exclamation: Current head 3e7af26 differs from pull request most recent head 44e911d. Consider uploading reports for the commit 44e911d to get more accurate results

@@           Coverage Diff           @@
##             main       #3   +/-   ##
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  Coverage        ?   43.43%           
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  Files           ?       26           
  Lines           ?      601           
  Branches        ?        0           
=======================================
  Hits            ?      261           
  Misses          ?      340           
  Partials        ?        0           

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