chore(deps): update dependency postcss to v8.4.42 (#3621)

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

Author: renovate[bot]

spring-boot-admin-server-ui/package-lock.json

@@ -97,7 +97,7 @@
     "jsdom": "^24.0.0",
     "msw": "2.4.1",
     "msw-storybook-addon": "2.0.3",
-    "postcss": "8.4.41",
+    "postcss": "8.4.42",
     "prettier": "^3.0.3",
     "rollup-plugin-visualizer": "5.12.0",
     "sass": "^1.57.1",