Bump command-exists from 1.2.2 to 1.2.8
Bump command-exists from 1.2.2 to 1.2.8

Bumps [command-exists](https://github.com/mathisonian/command-exists) from 1.2.2 to 1.2.8.
- [Release notes](https://github.com/mathisonian/command-exists/releases)
- [Commits](https://github.com/mathisonian/command-exists/compare/v1.2.2...v1.2.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
lishuailibertine/lishuailibertine.github.io