chore(deps-dev): bump @storybook/addons from 5.3.19 to 6.0.4 (#1925)

Bumps [@storybook/addons](https://github.com/storybookjs/storybook/tree/HEAD/lib/addons) from 5.3.19 to 6.0.4.
- [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/v6.0.4/lib/addons)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

packages/storybook/package.json

@@ -20,7 +20,7 @@
     "@storybook/addon-actions": "^5.3.17",
     "@storybook/addon-links": "^5.3.17",
     "@storybook/addon-storysource": "^5.3.18",
-    "@storybook/addons": "^5.3.17",
+    "@storybook/addons": "^6.0.4",
     "@storybook/react": "^5.3.17",
     "storybook-dark-mode": "^0.6.1"
   }