[Security] Bump postcss from 8.4.24 to 8.4.31, re #3315

Merge request studip/studip!2247

package-lock.json

@@ -13301,9 +13301,9 @@
             }
         },
         "node_modules/postcss": {
-            "version": "8.4.24",
-            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.24.tgz",
-            "integrity": "sha512-M0RzbcI0sO/XJNucsGjvWU9ERWxb/ytp1w6dKtxTKgixdtQDq4rmx/g8W1hnaheq9jgwL/oyEdH5Bc4WwJKMqg==",
+            "version": "8.4.31",
+            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+            "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
             "dev": true,
             "funding": [
                 {