build(deps-dev): bump postcss from 8.5.19 to 8.5.23

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.19 to 8.5.23.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.19...8.5.23)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.23
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -89,7 +89,7 @@
     "p-queue": "9.0.1",
     "papaparse": "5.5.3",
     "peerjs": "2.0.0-beta.3",
-    "postcss": "^8.5.19",
+    "postcss": "^8.5.23",
     "postcss-loader": "8.2.0",
     "react": "19.2.3",
     "react-dom": "19.2.3",

yarn.lock

@@ -4737,7 +4737,7 @@ __metadata:
     p-queue: "npm:9.0.1"
     papaparse: "npm:5.5.3"
     peerjs: "npm:2.0.0-beta.3"
-    postcss: "npm:^8.5.19"
+    postcss: "npm:^8.5.23"
     postcss-loader: "npm:8.2.0"
     react: "npm:19.2.3"
     react-dom: "npm:19.2.3"
@@ -6883,6 +6883,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"nanoid@npm:^3.3.16":
+  version: 3.3.18
+  resolution: "nanoid@npm:3.3.18"
+  bin:
+    nanoid: bin/nanoid.cjs
+  checksum: 10/1b3b4fdac831b92b56d1dbe8b1e63a372432faf86ea383134e3b53141ef8108a60b7f84343b5cefecac9550bb74edf8164da93ea07d1c4f757039bc75d8a5d9e
+  languageName: node
+  linkType: hard
+
 "napi-build-utils@npm:^2.0.0":
   version: 2.0.0
   resolution: "napi-build-utils@npm:2.0.0"
@@ -7956,7 +7965,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.4.33, postcss@npm:^8.4.40, postcss@npm:^8.5.19":
+"postcss@npm:^8.4.33, postcss@npm:^8.4.40":
   version: 8.5.19
   resolution: "postcss@npm:8.5.19"
   dependencies:
@@ -7967,6 +7976,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.5.23":
+  version: 8.5.23
+  resolution: "postcss@npm:8.5.23"
+  dependencies:
+    nanoid: "npm:^3.3.16"
+    picocolors: "npm:^1.1.1"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10/8387f421216696bf62a13e5a270e9fefdafc81e196903c0f8d7653f8bab315367cc2261b3c22cf197e492cb075f31bdfc07fd9c3be1cb165ff3cabe14c5a039a
+  languageName: node
+  linkType: hard
+
 "prebuild-install@npm:^7.1.1, prebuild-install@npm:^7.1.3":
   version: 7.1.3
   resolution: "prebuild-install@npm:7.1.3"