Extend and improve k8s integration workflow

[rszamszur]

Checklist:

• Added tests for changed code where applicable.
• Documentation reflects the changes where applicable.
• Updated the CHANGELOG.md file with your changes.
• My PR is ready to review.

Resolves: #93

Description of the changes being introduced by the pull request:

[github-actions]

🚀 Deployed on https://626c365547454700b00de223--fastapi-mvc.netlify.app

[codecov-commenter]

Codecov Report

Merging #94 (57138ad) into master (54fc259) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #94   +/-   ##
=======================================
  Coverage   99.62%   99.62%           
=======================================
  Files          39       39           
  Lines         797      797           
=======================================
  Hits          794      794           
  Misses          3        3           

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