Bump @storybook/builder-webpack5 from 6.5.16 to 7.0.4

Bumps [@storybook/builder-webpack5](https://github.com/storybookjs/storybook/tree/HEAD/lib/core) from 6.5.16 to 7.0.4.
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Commits](https://github.com/storybookjs/storybook/commits/v7.0.4/lib/core)

---
updated-dependencies:
- dependency-name: "@storybook/builder-webpack5"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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