chore: Bump @storybook/source-loader from 6.1.9 to 8.1.11

Bumps [@storybook/source-loader](https://github.com/storybookjs/storybook/tree/HEAD/code/lib/source-loader) from 6.1.9 to 8.1.11.
- [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/v8.1.11/code/lib/source-loader)

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

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