feat(ByRole): Allow filter by busy state

[eps1lon]

Part of a larger committment to unify APIs for /react-native and /react (which is just /react-dom at the moment)

What:

Enables ByRole(role, { busy })

Why:

Makes writing tests for react-native and react-dom easier by removing barriers when changing the target platform that's being tested.

How:

Same patterns as for expanded, selected etc

Checklist:

• [x] Documentation: https://github.com/testing-library/testing-library-docs/pull/1232
• [x] Tests
• [x] TypeScript definitions updated
• [x] Ready to be merged

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[codecov[bot]]

Codecov Report

Merging #1222 (0474b96) into main (fb069c9) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main     #1222   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           24        24           
  Lines          992       999    +7     
  Branches       322       323    +1     
=========================================
+ Hits           992       999    +7     

Flag	Coverage Δ
node-14	100.00% <100.00%> (ø)
node-16	100.00% <100.00%> (ø)
node-18	100.00% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/queries/role.ts	100.00% <100.00%> (ø)
src/role-helpers.js	100.00% <100.00%> (ø)

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