Bump storybook from 7.0.17 to 7.0.18 in /assets (#1477)

Bumps [storybook](https://github.com/storybookjs/storybook/tree/HEAD/code/lib/cli) from 7.0.17 to 7.0.18.
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Changelog](https://github.com/storybookjs/storybook/blob/v7.0.18/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/storybook/commits/v7.0.18/code/lib/cli)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>