refactor: Change to return type of utc_now from pendulum.DateTime to datetime.datetime

[edgarrmondragon]

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📚 Documentation preview 📚: https://meltano-sdk--2453.org.readthedocs.build/en/2453/

[codspeed-hq]

CodSpeed Performance Report

Merging #2453 will not alter performance

_{Comparing edgarrmondragon/refactor/utc_now-return-type (d10fb43) with main (731fc35)}

Summary

✅ 6 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.18%. Comparing base (731fc35) to head (d10fb43).
Report is 135 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2453   +/-   ##
=======================================
  Coverage   89.18%   89.18%           
=======================================
  Files          54       54           
  Lines        4790     4791    +1     
  Branches      937      937           
=======================================
+ Hits         4272     4273    +1     
  Misses        361      361           
  Partials      157      157           

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