chore(deps-dev): bump @percy/storybook from 4.1.0 to 6.0.3

Bumps [@percy/storybook](https://github.com/percy/percy-storybook) from 4.1.0 to 6.0.3.
- [Release notes](https://github.com/percy/percy-storybook/releases)
- [Commits](percy/percy-storybook@v4.1.0...v6.0.3)

---
updated-dependencies:
- dependency-name: "@percy/storybook"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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