Bumps [actions/setup-python](https://github.com/actions/setup-python) from 1 or 2 to 4. - [Release notes](https://github.com/actions/setup-python/releases) - [Commits](https://github.com/actions/setup-python/compare/v2...v4) --- updated-dependencies: - dependency-name: actions/setup-python dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
The existing actions/checkout@v2 is causing Node v12 deprecation warnings to be shown in GitHub Actions. v3 uses Node v16, which will stop the warnings.
This builds docs, but only on pull requests that change a file in the docs/ directory.