Bump loglevel from 1.6.6 to 1.6.8 (#13569)

Bumps [loglevel](https://github.com/pimterry/loglevel) from 1.6.6 to 1.6.8.
- [Release notes](https://github.com/pimterry/loglevel/releases)
- [Commits](https://github.com/pimterry/loglevel/compare/v1.6.6...v1.6.8

)

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