Bump storybook from 7.6.7 to 7.6.8

Bumps [storybook](https://github.com/storybookjs/storybook/tree/HEAD/code/lib/cli) from 7.6.7 to 7.6.8.
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Changelog](https://github.com/storybookjs/storybook/blob/next/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/storybook/commits/v7.6.8/code/lib/cli)

---
updated-dependencies:
- dependency-name: storybook
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>