chore(deps-dev): bump postcss from 8.5.6 to 8.5.10 in /document (#6814)

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.6 to 8.5.10.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.5.6...8.5.10)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.10
  dependency-type: direct:development
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

document/package-lock.json

@@ -39,7 +39,7 @@
         "@types/node": "24.0.13",
         "@types/react": "^19.1.8",
         "@types/react-dom": "^19.1.6",
-        "postcss": "^8.5.6",
+        "postcss": "^8.5.10",
         "tailwindcss": "^4.1.11",
         "typescript": "^5.8.3",
         "zod": "^4.0.5"
@@ -5390,9 +5390,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.6",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz",
-      "integrity": "sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==",
+      "version": "8.5.10",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.10.tgz",
+      "integrity": "sha512-pMMHxBOZKFU6HgAZ4eyGnwXF/EvPGGqUr0MnZ5+99485wwW41kW91A4LOGxSHhgugZmSChL5AlElNdwlNgcnLQ==",
       "dev": true,
       "funding": [
         {

document/package.json

@@ -39,7 +39,7 @@
     "@types/node": "24.0.13",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.10",
     "tailwindcss": "^4.1.11",
     "typescript": "^5.8.3",
     "zod": "^4.0.5"