chore(deps): bump lightningcss from 1.28.2 to 1.29.1 (#2898)

Bumps [lightningcss](https://github.com/parcel-bundler/lightningcss) from 1.28.2 to 1.29.1.
- [Release notes](https://github.com/parcel-bundler/lightningcss/releases)
- [Commits](https://github.com/parcel-bundler/lightningcss/commits)

---
updated-dependencies:
- dependency-name: lightningcss
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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packages/design-tokens/package.json

@@ -32,7 +32,7 @@
   },
   "dependencies": {
     "browserslist": "^4.24.4",
-    "lightningcss": "^1.28.2",
+    "lightningcss": "^1.29.1",
     "prop-types": "^15.8.1"
   },
   "devDependencies": {