Bump stylelint-scss from 6.3.2 to 6.4.0 (#304)

Bumps [stylelint-scss](https://github.com/stylelint-scss/stylelint-scss) from 6.3.2 to 6.4.0.
- [Release notes](https://github.com/stylelint-scss/stylelint-scss/releases)
- [Changelog](https://github.com/stylelint-scss/stylelint-scss/blob/master/CHANGELOG.md)
- [Commits](stylelint-scss/stylelint-scss@v6.3.2...v6.4.0)

---
updated-dependencies:
- dependency-name: stylelint-scss
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -31,7 +31,7 @@
   "dependencies": {
     "postcss-scss": "^4.0.9",
     "stylelint-config-recommended": "^14.0.1",
-    "stylelint-scss": "^6.3.2"
+    "stylelint-scss": "^6.4.0"
   },
   "devDependencies": {
     "@stylelint/prettier-config": "^3.0.0",