disable hedging for s3 express

[TingDaoK]

Issue #, if available:

• Hedging breaks upload to S3 Express aws-s3-transfer-manager-rs#87

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.19%. Comparing base (4782ecb) to head (c33c747).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #602      +/-   ##
==========================================
- Coverage   89.19%   89.19%   -0.01%     
==========================================
  Files          23       23              
  Lines        7579     7577       -2     
==========================================
- Hits         6760     6758       -2     
  Misses        819      819              

Files with missing lines	Coverage Δ
source/s3_auto_ranged_put.c	91.97% <ø> (-0.02%)	⬇️
source/s3_checksum_context.c	88.23% <ø> (ø)
source/s3_meta_request.c	91.36% <ø> (-0.01%)	⬇️

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