feat: auto-enable github-actions reporter

[hi-ogawa]

Description

• merge base feat(vitest): add github actions reporter vitest-dev/vitest#5093

Testing auto enable to see what happens on Vitest repo CI.

todo

• annotations doesn't work when running pnpm run -r test since pnpm prepends output test/core test: ::error instead of ::error
• retry error is included in the output?
  • https://github.com/hi-ogawa/vitest/actions/runs/7807949404/job/21297311803?pr=1#step:8:731

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Tests

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Documentation

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Changesets

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