Bump postcss-custom-selectors from 8.0.1 to 8.0.3

Bumps [postcss-custom-selectors](https://github.com/csstools/postcss-plugins/tree/HEAD/plugins/postcss-custom-selectors) from 8.0.1 to 8.0.3.
- [Changelog](https://github.com/csstools/postcss-plugins/blob/main/plugins/postcss-custom-selectors/CHANGELOG.md)
- [Commits](https://github.com/csstools/postcss-plugins/commits/HEAD/plugins/postcss-custom-selectors)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -23,7 +23,7 @@
     "postcss": "^8.4.47",
     "postcss-cli": "^11.0.0",
     "postcss-custom-media": "^10.0.8",
-    "postcss-custom-selectors": "^8.0.1",
+    "postcss-custom-selectors": "^8.0.3",
     "postcss-discard-comments": "^7.0.2",
     "postcss-each": "^1.1.0",
     "postcss-easy-import": "^4.0.0",