chore(deps-dev): bump baseline-browser-mapping from 2.9.18 to 2.9.19

Bumps [baseline-browser-mapping](https://github.com/web-platform-dx/baseline-browser-mapping) from 2.9.18 to 2.9.19.
- [Release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases)
- [Commits](web-platform-dx/baseline-browser-mapping@v2.9.18...v2.9.19)

---
updated-dependencies:
- dependency-name: baseline-browser-mapping
  dependency-version: 2.9.19
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]