chore(deps): update dependency cssnano to v5.1.11

Author: renovate-bot

campus/package.json

@@ -32,7 +32,7 @@
     "autoprefixer": "10.4.2",
     "babel-plugin-styled-components": "2.0.6",
     "concurrently": "7.0.0",
-    "cssnano": "5.1.0",
+    "cssnano": "5.1.11",
     "dotenv": "^16.0.1",
     "eslint": "8.10.0",
     "eslint-config-airbnb": "19.0.4",