Bump electron-mksnapshot from 29.2.0 to 29.3.0

Bumps [electron-mksnapshot](https://github.com/electron/mksnapshot) from 29.2.0 to 29.3.0.
- [Release notes](https://github.com/electron/mksnapshot/releases)
- [Commits](https://github.com/electron/mksnapshot/compare/v29.2.0...v29.3.0)

---
updated-dependencies:
- dependency-name: electron-mksnapshot
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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