Bugfix: Update datetime.utcnow() usage to use timezone.utc

[Magnus167]

No description provided.

[codecov]

Codecov Report

Attention: 16 lines in your changes are missing coverage. Please review.

Comparison is base (0b6cdb9) 82.18% compared to head (b5196cb) 82.09%.
Report is 5 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1428      +/-   ##
===========================================
- Coverage    82.18%   82.09%   -0.09%     
===========================================
  Files           60       60              
  Lines         5917     5927      +10     
===========================================
+ Hits          4863     4866       +3     
- Misses        1054     1061       +7     

Files	Coverage Δ
macrosynergy/download/dataquery.py	71.60% <100.00%> (-0.09%)	⬇️
macrosynergy/download/jpmaqs.py	84.46% <ø> (ø)
macrosynergy/panel/category_relations.py	39.05% <0.00%> (-1.64%)	⬇️

... and 1 file with indirect coverage changes