Add Account Id to Credentials

[waahm7]

Issue #, if available:
awslabs/aws-crt-swift#303

Description of changes:

• Adds a new optional account_id field to credentials. Currently, only static credentials support it, but soon we will add account_id for SSO, STS, and any other providers that can provide it.
• Code coverage action was broken, fixed by updating gcc to match newer ubuntu. Because we updated the action to use newer ubuntu 24 image, we were getting an error that

Problem running coverage on file: /home/runner/work/aws-c-s3/aws-c-s3/build/aws-c-s3/CMakeFiles/aws-c-s3.dir/source/s3_checksum_stream.c.gcda
Command produced error: /home/runner/work/aws-c-s3/aws-c-s3/build/aws-c-s3/CMakeFiles/aws-c-s3.dir/source/s3_checksum_stream.c.gcno:version 'A95*', prefer 'B33*

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

Attention: Patch coverage is 94.11765% with 1 line in your changes missing coverage. Please review.

Project coverage is 80.50%. Comparing base (cdfb616) to head (ff1ba7a).
Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
source/credentials.c	93.75%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #260      +/-   ##
==========================================
+ Coverage   80.41%   80.50%   +0.09%     
==========================================
  Files          33       33              
  Lines        6019     6099      +80     
==========================================
+ Hits         4840     4910      +70     
- Misses       1179     1189      +10     

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[TingDaoK]

why? Add some comments about this?
Do we need it to be applied to other codecov jobs?

[waahm7]

I have added the comment. Yes, we need to fix it everywhere where we updated the code coverage action ubuntu version.

[TingDaoK]

hmmm looks like the ci before the commit changing the compiler still work? https://github.com/awslabs/aws-c-auth/actions/runs/12757805423/job/35558824650

[waahm7]

If you expand the build step and scroll to the end, you can see the errors. No idea why the overall CI says success.

[TingDaoK]

hmmm, maybe instead of updating the gcc version for every codecov ci, we should update our builder

https://github.com/awslabs/aws-crt-builder/blob/42d15ba4ee3fbe0e812e25094a8cf59eaef0cf1e/builder/actions/cmake.py#L254-L258

We install our own version of gcc, but the ctest -T coverage probably still use the default one in the system.

Seems like we can pass --gcov to chose what version of gcov to solve the version mismatch thing. https://stackoverflow.com/questions/12454175/gcov-out-of-memory-mismatched-version

[waahm7]

Thanks, fixed by awslabs/aws-crt-builder#317.