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[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.62%. Comparing base (33bce10) to head (42c8b93). Report is 12 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #3552    +/-   ##
========================================
  Coverage   96.62%   96.62%            
========================================
  Files         817      818     +1     
  Lines       23800    23823    +23     
  Branches     7919     8351   +432     
========================================
+ Hits        22996    23019    +23     
+ Misses        797      750    -47     
- Partials        7       54    +47     

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