ci: 📦 update dependency postcss-preset-env to ~9.6.0 (#477)

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

Author: renovate[bot]

package.json

@@ -112,7 +112,7 @@
     "nx": "19.1.2",
     "postcss": "^8.4.5",
     "postcss-import": "16.1.0",
-    "postcss-preset-env": "~9.5.0",
+    "postcss-preset-env": "~9.6.0",
     "postcss-url": "10.1.3",
     "prettier": "3.3.2",
     "ts-jest": "29.1.5",