fix(cli): trace output (-vv) is useless when files are uploaded

[mrgrain]

Reason for this change

When running the CDK CLI in trace mode (with -vv), e.g. cdk deploy -vv we log all SDK calls and their inputs. For file uploads, the input contains the buffer of the file to be uploaded. This results in really bad output:

[20:14:31] [sdk info] S3.PutObject({"Bucket":"cdk-hnb659fds-assets-us-east-1","Key":"220c435f80d2dd2cfc5dd0e8e29bfbb6ec58892bd813f5d6a008fdda38f6c02f.zip","Body":{"type":"Buffer","data":[80,75,3,4,20,0,8,0,8,0,0,0,33,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,100,97,116,97,46,116,120,116,75,73,44,73,52,227,2,0,80,75,7,8,165,92,116,66,8,0,0,0,6,0,0,0,80,75,1,2,45,3,20,0,8,0,8,0,0,0,33,0,165,92,116,66,8,0,0,0,6,0,0,0,8,0,0,0,0,0,0,0,0,0,32,0,164,129,0,0,0,0,100,97,116,97,46,116,120,116,80,75,5,6,0,0,0,0,1,0,1,0,54,0,0,0,62,0,0,0,0,0]},"ContentType":"application/zip","ChecksumAlgorithm":"SHA256","ServerSideEncryption":"aws:kms"}) -> OK

Now in this case we are only uploading 138 bytes. Imagine what this log looks like for files of 10MiB or 100MiB. Reportedly this also crashed every terminal.

Description of changes

There's no need to log the buffer bytes. Instead replace it with a string indicating its a buffer and the buffer length:

[20:14:31] [sdk info] S3.PutObject({"Body":"<Buffer 138 Bytes>"}) -> OK

Describe any new or updated permissions being added

n/a

Description of how you validated changes

Tests

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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

[aws-cdk-automation]

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[codecov]

Codecov Report

Attention: Patch coverage is 82.35294% with 3 lines in your changes missing coverage. Please review.

Project coverage is 81.54%. Comparing base (344d916) to head (cef26d0).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #33104      +/-   ##
==========================================
+ Coverage   81.53%   81.54%   +0.01%     
==========================================
  Files         226      227       +1     
  Lines       13769    13793      +24     
  Branches     2414     2419       +5     
==========================================
+ Hits        11227    11248      +21     
- Misses       2270     2272       +2     
- Partials      272      273       +1     

Flag	Coverage Δ
suite.unit	81.54% <82.35%> (+0.01%)	⬆️

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Components	Coverage Δ
packages/aws-cdk	80.94% <82.35%> (+0.02%)	⬆️
packages/aws-cdk-lib/core	82.17% <ø> (ø)

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• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: cef26d0
• Result: SUCCEEDED
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