chore(deps): update dependency postcss-preset-env to v9 (#74)

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

Author: renovate[bot]

package.json

@@ -64,7 +64,7 @@
     "postcss-custom-media": "^9.1.2",
     "postcss-import": "^15.1.0",
     "postcss-loader": "^7.0.2",
-    "postcss-preset-env": "^8.0.1",
+    "postcss-preset-env": "^9.0.0",
     "sass": "^1.59.2",
     "sass-loader": "^13.2.0",
     "style-loader": "^3.3.2",