Nix binary cache, S3, InvalidChunkSizeError

[gmarti]

Describe the bug

Updated from nix 2.25.3 2.22.1 to nix 2.26.3

copying path '/nix/store/3k5i8lz9pay0jn76xlm8y841xxa9mz2a-package' to 's3://bucket'...

error: AWS error: failed to upload 's3://bucket/blablabla.nar.zst': 
Unable to parse ExceptionName: 
InvalidChunkSizeError Message: Only the last chunk is allowed to have a size less than 8192 bytes

Steps To Reproduce

Uploading big files to S3 seems to fail randomly because of InvalidChunkSizeError

Expected behavior

The upload should succeed

Metadata

Using docker with custom nix 2.26.3 install

Additional context

It seems I hit this bug : aws/aws-sdk-cpp#3132

If I'm not mistaken 2.26.3 uses aws-sdk-cpp "1.11.336"
But 2.25.3 was using aws-sdk-cpp "1.11.318""

The bug is fixed in >= 1.11.445

Checklist

• [ x] checked latest Nix manual (source)
• [x ] checked open bug issues and pull requests for possible duplicates

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[mplanchard]

Started seeing this when we added multipart-upload=true to our s3 cache settings