build(deps): bump rfd from 0.15.0 to 0.15.4

Bumps [rfd](https://github.com/PolyMeilex/rfd) from 0.15.0 to 0.15.4.
- [Release notes](https://github.com/PolyMeilex/rfd/releases)
- [Changelog](https://github.com/PolyMeilex/rfd/blob/master/CHANGELOG.md)
- [Commits](PolyMeilex/rfd@0.15.0...0.15.4)

---
updated-dependencies:
- dependency-name: rfd
  dependency-version: 0.15.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]