Bump postcss from 8.5.9 to 8.5.12

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.9 to 8.5.12.
- [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/8.5.9...8.5.12)

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

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

package-lock.json

@@ -34,7 +34,7 @@
         "@types/lodash-es": "4.17.12",
         "jsdom": "29.0.2",
         "playwright-ng-schematics": "^21.0.9",
-        "postcss": "8.5.9",
+        "postcss": "8.5.12",
         "prettier": "3.8.3",
         "tailwindcss": "4.2.2",
         "typescript": "5.9.3",
@@ -7790,9 +7790,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.9",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.9.tgz",
-      "integrity": "sha512-7a70Nsot+EMX9fFU3064K/kdHWZqGVY+BADLyXc8Dfv+mTLLVl6JzJpPaCZ2kQL9gIJvKXSLMHhqdRRjwQeFtw==",
+      "version": "8.5.12",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.12.tgz",
+      "integrity": "sha512-W62t/Se6rA0Az3DfCL0AqJwXuKwBeYg6nOaIgzP+xZ7N5BFCI7DYi1qs6ygUYT6rvfi6t9k65UMLJC+PHZpDAA==",
       "dev": true,
       "funding": [
         {