build(deps): bump @storybook/addon-links

Bumps [@storybook/addon-links](https://github.com/storybookjs/storybook/tree/HEAD/code/addons/links) from 6.5.16 to 7.6.8.
- [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/v7.6.8/code/addons/links)

---
updated-dependencies:
- dependency-name: "@storybook/addon-links"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

superset-frontend/packages/superset-ui-demo/package.json

@@ -38,7 +38,7 @@
     "@react-icons/all-files": "^4.1.0",
     "@storybook/addon-actions": "^6.3.12",
     "@storybook/addon-knobs": "^6.3.1",
-    "@storybook/addon-links": "^6.3.12",
+    "@storybook/addon-links": "^7.6.8",
     "@storybook/addons": "^6.3.12",
     "@storybook/react": "^6.3.12",
     "@types/react-loadable": "^5.5.3",