chore(deps): update dependency lightningcss to v1.29.1

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
     "get-port": "6.1.2",
     "happy-dom": "9.10.1",
     "kleur": "4.1.5",
-    "lightningcss": "1.20.0",
+    "lightningcss": "1.29.1",
     "nanospy": "0.5.0",
     "pirates": "4.0.5",
     "playwright-chromium": "1.34.3",