test(avt): include playwright test report json in @carbon/react

[tay1orjones]

First part of #14480

This modifies the playwright config to output a duplicate json report file that will be included in the build output of @carbon/react.

This file will be used within carbon-website to generate automated accessibility test status tables for each component.

Changelog

New

• Add docs establishing a naming convention for avt test names and tags

Changed

• Update release workflow to run avt tests and produce the json file
• Update @carbon/react package.json to include the new file as part of the published package
• Update playwright config to output the report json within packages/react/.playwright
• Refactor accordion avt tests to be properly named using the newly documented tag naming convention

Testing / Reviewing

• There's nothing really to test here, other than pulling down and running yarn playwright test and ensure the INTERNAL_AVT_REPORT_DO_NOT_USE.json file is output and in the proper location.

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[tw15egan]

LGTM 👍 ✅

[carbon-automation]

Hey there! v11.37.0 was just released that references this issue/PR.