Bump postcss-custom-media from 10.0.6 to 10.0.8

Bumps [postcss-custom-media](https://github.com/csstools/postcss-plugins/tree/HEAD/plugins/postcss-custom-media) from 10.0.6 to 10.0.8.
- [Changelog](https://github.com/csstools/postcss-plugins/blob/main/plugins/postcss-custom-media/CHANGELOG.md)
- [Commits](https://github.com/csstools/postcss-plugins/commits/HEAD/plugins/postcss-custom-media)

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

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

package.json

@@ -49,7 +49,7 @@
     "node-libs-browser": "^2.2.1",
     "postcss": "^8.4.40",
     "postcss-calc": "^10.0.0",
-    "postcss-custom-media": "^10.0.6",
+    "postcss-custom-media": "^10.0.8",
     "postcss-custom-properties": "^13.3.12",
     "postcss-focus": "^7.0.0",
     "postcss-import": "^16.1.0",