feat(#1605): Deprecate metadata argument in 'rubrix.log' function

[dcfidalgo]

Closes #1605

[codecov[bot]]

Codecov Report

Merging #1606 (80f63cd) into master (f254e8d) will decrease coverage by 0.04%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1606      +/-   ##
==========================================
- Coverage   95.38%   95.34%   -0.05%     
==========================================
  Files         135      135              
  Lines        6441     6445       +4     
==========================================
+ Hits         6144     6145       +1     
- Misses        297      300       +3     

Flag	Coverage Δ
pytest	95.34% <100.00%> (-0.05%)	:arrow_down:

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Impacted Files	Coverage Δ
src/rubrix/client/api.py	96.06% <100.00%> (+0.06%)	:arrow_up:
...ubrix/labeling/text_classification/label_errors.py	86.74% <0.00%> (-3.62%)	:arrow_down:

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