Bump storybook from 7.6.20 to 9.1.8

Bumps [storybook](https://github.com/storybookjs/storybook/tree/HEAD/code/core) from 7.6.20 to 9.1.8.
- [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/v9.1.8/code/core)

---
updated-dependencies:
- dependency-name: storybook
  dependency-version: 9.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]