build(deps-dev): bump the actions-deps group with 2 updates

Bumps the actions-deps group with 2 updates: [cssnano](https://github.com/cssnano/cssnano) and [postcss](https://github.com/postcss/postcss).


Updates `cssnano` from 8.0.2 to 8.0.4
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/cssnano@8.0.2...cssnano@8.0.4)

Updates `postcss` from 8.5.25 to 8.5.26
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.25...8.5.26)

---
updated-dependencies:
- dependency-name: cssnano
  dependency-version: 8.0.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: actions-deps
- dependency-name: postcss
  dependency-version: 8.5.26
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: actions-deps
...

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

Author: dependabot[bot]

package.json

@@ -8,10 +8,10 @@
     },
     "devDependencies": {
         "ace-builds": "^1.44.0",
-        "cssnano": "^8.0.2",
+        "cssnano": "^8.0.4",
         "esbuild": "^0.28.1",
         "npm-run-all2": "^9.0.3",
-        "postcss": "^8.5.25",
+        "postcss": "^8.5.26",
         "postcss-cli": "^11.0.1",
         "postcss-nesting": "^14.0.1"
     }