build(deps-dev): Bump source-map-js from 1.2.0 to 1.2.1

Bumps [source-map-js](https://github.com/7rulnik/source-map-js) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/7rulnik/source-map-js/releases)
- [Changelog](https://github.com/7rulnik/source-map-js/blob/patch-0.6.1/CHANGELOG.md)
- [Commits](7rulnik/source-map-js@v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: source-map-js
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>