feat: context aware concurrent S3

[bpeng]

NOTE: This update fails the tests, probably caused by bugs in s3_concurrent, with test errors:

1. commit: 69446141224fbb47afb6540ca05d475732757853 feat: GetAllConcurrentlyWithContext function
   test blocks at TestS3GetAllConcurrentlyWithContext_Cancel/cancel-during-processing:

2. commit: 2630db5a809e4e450148d23b8c5897afcde29fe3 feat: update GetAllConcurrentlyWithContext to fix test failure:
   worker pools not recovered:

=== RUN   TestS3GetAllConcurrentlyWithContext_Cancel/cancel-during-processing
    s3_concurrent_test.go:290: 
        	Error Trace:	s3_concurrent_test.go:290
        	Error:      	Condition never satisfied
        	Test:       	TestS3GetAllConcurrentlyWithContext_Cancel/cancel-during-processing
        	Messages:   	workers pool not recovered, expected 100 actual 94

Further investigation is needed to fix the bugs.

Proposed Changes

Changes proposed in this pull request:

• Add context in S3 GetAllConcurrently function to allow handle context cancel

Production Changes

The following production changes are required to deploy these changes:

• None

Review

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Code Review Guide

[wilsonjord]

Looks ok. Do you think these new Context functions should be in the tests?