[Security] Bump command-exists from 1.2.2 to 1.2.4
[Security] Bump command-exists from 1.2.2 to 1.2.4

Bumps [command-exists](https://github.com/mathisonian/command-exists) from 1.2.2 to 1.2.4. **This update includes security fixes.**
- [Release notes](https://github.com/mathisonian/command-exists/releases)
- [Commits](https://github.com/mathisonian/command-exists/compare/v1.2.2...v1.2.4)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
tdukart/tts-loader