refactor(yaml): remove undefined type from tag, anchor and kind

[timreichen]

This PR removes undefined type from tag, anchor and kind as it only used during class initialisation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.16%. Comparing base (6f53e94) to head (bef52aa).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6907   +/-   ##
=======================================
  Coverage   94.16%   94.16%           
=======================================
  Files         583      583           
  Lines       42792    42792           
  Branches     6815     6815           
=======================================
  Hits        40294    40294           
  Misses       2447     2447           
  Partials       51       51           

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[kt3k]

LGTM