feat: Report bundle size for every commit in main

[jperals]

Description

• Report bundle size on push (not just on pull request). This is so that reports can be associated with commits.
• Extend bundle size report to include dependency versions taken from packagelock.json, as @cloudscape-design dependencies are not pinned in package.json

How has this been tested?

See:

• Report on this PR (PR workflow)
• Report on dev branch (push workflow)

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.39%. Comparing base (536f5f4) to head (06d0939).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2266      +/-   ##
==========================================
- Coverage   95.40%   95.39%   -0.01%     
==========================================
  Files         705      705              
  Lines       18715    18715              
  Branches     6222     5944     -278     
==========================================
- Hits        17855    17854       -1     
- Misses        807      854      +47     
+ Partials       53        7      -46     

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[jperals]

Use sha directly from the context: https://github.com/actions/toolkit/blob/main/packages/github/src/context.ts#L13

This allows it to work both for pushes and for pull requests.