docs: add Z712023 as a contributor for code

[allcontributors]

Adds @Z712023 as a contributor for code.

This was requested by MooooCat in this comment

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
• Apply: Add docstrings to all functions and file headers.

This is an automated message generated by Sweep AI.

[sweep-ai]

Fixing PR: track the progress here.

I'm currently fixing this PR to address the following:

[Sweep GHA Fix] The GitHub Actions run failed with the following error logs:

[!CAUTION]

An error has occurred: Sweep could not find any files to modify (tracking ID: 92f340bc03)

[codecov-commenter]

Codecov Report

Attention: 29 lines in your changes are missing coverage. Please review.

Comparison is base (d29a2a0) 78.99% compared to head (cd7660e) 78.58%.
Report is 2 commits behind head on main.

Files	Patch %	Lines
sdgx/metrics/pair_column/base.py	45.45%	18 Missing ⚠️
sdgx/metrics/pair_column/mi_sim.py	82.60%	8 Missing ⚠️
sdgx/utils.py	40.00%	3 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #112      +/-   ##
==========================================
- Coverage   78.99%   78.58%   -0.42%     
==========================================
  Files          62       64       +2     
  Lines        2680     2764      +84     
==========================================
+ Hits         2117     2172      +55     
- Misses        563      592      +29     

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