feat: Allow button native element attributes to be set

[gethinwebster]

Description

Allow button native attributes to be set.

Related links, issue #, if available: AWSUI-60858

How has this been tested?

New unit tests

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 96.55%. Comparing base (f4b5334) to head (47c6d9e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #3552    +/-   ##
========================================
  Coverage   96.55%   96.55%            
========================================
  Files         804      804            
  Lines       23439    23440     +1     
  Branches     7753     8168   +415     
========================================
+ Hits        22631    22632     +1     
  Misses        801      801            
  Partials        7        7            

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