⬆️ Bump @storybook/addon-links from 6.1.18 to 6.1.21

Bumps [@storybook/addon-links](https://github.com/storybookjs/storybook/tree/HEAD/addons/links) from 6.1.18 to 6.1.21.
- [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/v6.1.21/addons/links)

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

Author: dependabot[bot]

package-lock.json

@@ -32,7 +32,7 @@
   },
   "devDependencies": {
     "@storybook/addon-essentials": "^6.1.18",
-    "@storybook/addon-links": "^6.1.18",
+    "@storybook/addon-links": "^6.1.21",
     "@storybook/react": "^6.1.14",
     "@types/node": "^14.14.34",
     "@types/react": "^17.0.0",