Bump actions/labeler from 5 to 6 (#402)

Bumps [actions/labeler](https://github.com/actions/labeler) from 5 to 6.
- [Release notes](https://github.com/actions/labeler/releases)
- [Commits](actions/labeler@v5...v6)

---
updated-dependencies:
- dependency-name: actions/labeler
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Shane Krueger <shane@acdmail.com>

Fix GetDirectiveLocation exception message (#397)

Append newline to printed documents (#391)

Merge from v8

Fix printing operation type (#371)

Fix whitespace issues (#359)

Merge from v8

Bump xunit and related fixes (#350)

Merge branch 'v8'

Remove ThrowIfCancellationRequested from VisitAsync (#337)