Support spaces in the key of an S3 URI when validating.

[sheriferson]

See: https://alleninstitute.atlassian.net/browse/DT-7113

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 4 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@1fa05d2). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/aibs_informatics_core/models/aws/s3.py	71.42%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #22   +/-   ##
=======================================
  Coverage        ?   96.45%           
=======================================
  Files           ?       54           
  Lines           ?     3554           
  Branches        ?      403           
=======================================
  Hits            ?     3428           
  Misses          ?       71           
  Partials        ?       55           

Files with missing lines	Coverage Δ
src/aibs_informatics_core/models/aws/s3.py	95.53% <71.42%> (ø)