Bump postcss from 8.5.2 to 8.5.3

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.2 to 8.5.3.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.2...8.5.3)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.yarn/cache/postcss-npm-8.5.3-37174aa03d-b75510d7b2.zip

@@ -14,7 +14,7 @@
     "next": "^15.1.6",
     "nextra": "^4.2.7",
     "nextra-theme-docs": "^4.2.7",
-    "postcss": "^8.5.2",
+    "postcss": "^8.5.3",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-icons": "^5.4.0",

package.json

@@ -1511,7 +1511,7 @@ __metadata:
     nextra: "npm:^4.2.7"
     nextra-theme-docs: "npm:^4.2.7"
     pagefind: "npm:^1.3.0"
-    postcss: "npm:^8.5.2"
+    postcss: "npm:^8.5.3"
     prettier: "npm:^3.5.0"
     prettier-plugin-tailwindcss: "npm:^0.6.11"
     react: "npm:^18.3.1"
@@ -4381,7 +4381,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.4.41, postcss@npm:^8.5.2":
+"postcss@npm:^8.4.41":
   version: 8.5.2
   resolution: "postcss@npm:8.5.2"
   dependencies:
@@ -4392,6 +4392,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.5.3":
+  version: 8.5.3
+  resolution: "postcss@npm:8.5.3"
+  dependencies:
+    nanoid: "npm:^3.3.8"
+    picocolors: "npm:^1.1.1"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/b75510d7b28c3ab728c8733dd01538314a18c52af426f199a3c9177e63eb08602a3938bfb66b62dc01350b9aed62087eabbf229af97a1659eb8d3513cec823b3
+  languageName: node
+  linkType: hard
+
 "prettier-plugin-tailwindcss@npm:^0.6.11":
   version: 0.6.11
   resolution: "prettier-plugin-tailwindcss@npm:0.6.11"