chore(deps-dev): bump @storybook/addon-docs from 7.0.0-rc.4 to 7.2.1

Bumps [@storybook/addon-docs](https://github.com/storybookjs/storybook/tree/HEAD/code/addons/docs) from 7.0.0-rc.4 to 7.2.1.
- [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/v7.2.1/code/addons/docs)

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

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

package.json

@@ -44,7 +44,7 @@
     "@commitlint/config-conventional": "^17.4.4",
     "@storybook/addon-a11y": "^7.0.22",
     "@storybook/addon-actions": "^7.0.0-rc.4",
-    "@storybook/addon-docs": "^7.0.0-rc.4",
+    "@storybook/addon-docs": "^7.2.1",
     "@storybook/addon-essentials": "^7.0.0-rc.4",
     "@storybook/addon-links": "^7.0.22",
     "@storybook/addon-viewport": "^7.0.22",