fix(storage): missing Size in listParts output

[HuiSF]

Description of changes

• Fix multipart upload doesn't complete on resume when all parts have been uploaded previously
• Fix custom S3 client listParts output doesn't include the Size property

Issue #, if available

Description of how you validated changes

• Local testing
• Unit testing

Checklist

• PR description included
• yarn test passes
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)

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

[AllanZhengYP]

Thank you for fixing this!

[codecov-commenter]

Codecov Report

Merging #11559 (679d78a) into v5/custom-clients (3e2c1a9) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@                  Coverage Diff                  @@
##           v5/custom-clients   #11559      +/-   ##
=====================================================
+ Coverage              83.61%   83.65%   +0.03%     
=====================================================
  Files                    317      336      +19     
  Lines                  21281    21491     +210     
  Branches                4552     4586      +34     
=====================================================
+ Hits                   17795    17978     +183     
- Misses                  3198     3226      +28     
+ Partials                 288      287       -1     

see 91 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[cshfang]

Lgtm!