docs: add tf as a contributor for bug

[allcontributors]

Add @tf as a contributor for bug.

This was requested by ph-fritsche in this comment

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[codecov]

Codecov Report

Merging #707 (b6bb5c1) into main (17509fe) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #707   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        50           
  Lines          935       935           
  Branches       369       369           
=========================================
  Hits           935       935           

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[github-actions]

🎉 This PR is included in version 13.2.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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