chore(deps-dev): bump @storybook/addons from 6.3.7 to 6.3.8 (#657)

Bumps [@storybook/addons](https://github.com/storybookjs/storybook/tree/HEAD/lib/addons) from 6.3.7 to 6.3.8.
- [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/v6.3.8/lib/addons)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -44,7 +44,7 @@
     "@babel/plugin-proposal-class-properties": "7.14.5",
     "@storybook/addon-knobs": "6.3.0",
     "@storybook/addon-storysource": "6.3.7",
-    "@storybook/addons": "6.3.7",
+    "@storybook/addons": "6.3.8",
     "@storybook/react": "6.3.8",
     "@testing-library/jest-dom": "5.14.1",
     "@testing-library/react": "12.1.1",