Disable s3 region lookup and ignore deletion error on Actions CI

[tzununbekov]

This PR fixes errors discovered during test deployment:

• AWS CLI fails to sync bucket contents because of the region lookup operation - disable lookup via additional env variable,
• S3 bucket deletion does not run if previous steps fail - added post-run cleanup operation that should run always.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (68056b2) 37.81% compared to head (2bd41a6) 37.80%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5981      +/-   ##
==========================================
- Coverage   37.81%   37.80%   -0.01%     
==========================================
  Files         371      371              
  Lines       20665    20665              
==========================================
- Hits         7814     7813       -1     
- Misses      12070    12071       +1     
  Partials      781      781              

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