Bump postcss-custom-media from 8.0.2 to 10.0.8

Bumps [postcss-custom-media](https://github.com/csstools/postcss-plugins/tree/HEAD/plugins/postcss-custom-media) from 8.0.2 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-major
...

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

package.json

@@ -122,7 +122,7 @@
     "npm-run-all": "^4.1.5",
     "postcss": "^8.4.31",
     "postcss-color-mod-function": "npm:@alexlafroscia/postcss-color-mod-function@^4.0.0",
-    "postcss-custom-media": "^8.0.2",
+    "postcss-custom-media": "^10.0.8",
     "postcss-custom-properties": "^12.1.11",
     "postcss-easings": "^4.0.0",
     "postcss-import": "^15.0.0",