fix(deps): update dependency postcss to v8.5.18 [security] (#2910)

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

Author: renovate[bot]

package-lock.json

@@ -92,7 +92,7 @@
     "lodash.merge": "4.6.2",
     "ora": "9.4.0",
     "pascal-case": "4.0.0",
-    "postcss": "8.5.15",
+    "postcss": "8.5.18",
     "prettier": "3.8.4",
     "progress-estimator": "0.3.1",
     "regenerator-runtime": "0.14.1",