Build(deps-dev): Bump @floating-ui/dom from 1.6.7 to 1.6.8 (#28027)

Bumps [@floating-ui/dom](https://github.com/floating-ui/floating-ui/tree/HEAD/packages/dom) from 1.6.7 to 1.6.8.
- [Release notes](https://github.com/floating-ui/floating-ui/releases)
- [Changelog](https://github.com/floating-ui/floating-ui/blob/master/packages/dom/CHANGELOG.md)
- [Commits](https://github.com/floating-ui/floating-ui/commits/@floating-ui/dom@1.6.8/packages/dom)

---
updated-dependencies:
- dependency-name: "@floating-ui/dom"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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app/assets/javascripts/discourse/package.json

@@ -53,7 +53,7 @@
     "@embroider/macros": "^1.13.1",
     "@embroider/router": "^2.1.8",
     "@embroider/webpack": "^4.0.4",
-    "@floating-ui/dom": "^1.6.7",
+    "@floating-ui/dom": "^1.6.8",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "@popperjs/core": "^2.11.8",