build(deps-dev): bump @storybook/blocks from 7.0.21 to 7.4.0

Bumps [@storybook/blocks](https://github.com/storybookjs/storybook/tree/HEAD/code/ui/blocks) from 7.0.21 to 7.4.0.
- [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/v7.4.0/code/ui/blocks)

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

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