Add GitHub action to check for bug repro

[bvaughn]

Resolves #21541

This action can be tested at https://github.com/bvaughn/test-github-issue-template by creating a new DevTools bug report.

Note that the debug logs in this Workflow won't be visible unless we set ACTIONS_STEP_DEBUG=true in the repository "secrets" settings.

[sizebot]

Comparing: 51ebccc...e877b59

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.min.js	=	126.00 kB	126.00 kB	=	40.41 kB	40.41 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js	=	128.82 kB	128.82 kB	=	41.35 kB	41.35 kB
facebook-www/ReactDOM-prod.classic.js	=	406.09 kB	406.09 kB	=	75.11 kB	75.11 kB
facebook-www/ReactDOM-prod.modern.js	=	394.46 kB	394.46 kB	=	73.29 kB	73.29 kB
facebook-www/ReactDOMForked-prod.classic.js	=	406.09 kB	406.09 kB	=	75.11 kB	75.11 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against e877b59

[bvaughn]

I'm going to try this and keep an eye on it. :)