chore(deps): Bump wpt from 9da4afa to 6efc8af

Bumps [wpt](https://github.com/web-platform-tests/wpt) from `9da4afa` to `6efc8af`.
- [Release notes](https://github.com/web-platform-tests/wpt/releases)
- [Commits](web-platform-tests/wpt@9da4afa...6efc8af)

---
updated-dependencies:
- dependency-name: wpt
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>