fix: update dependency @eslint/css-tree to ^3.6.9 (#378)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -68,7 +68,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@eslint/core": "^1.1.0",
-    "@eslint/css-tree": "^3.6.8",
+    "@eslint/css-tree": "^3.6.9",
     "@eslint/plugin-kit": "^0.6.0"
   },
   "devDependencies": {