Bump stylelint-scss from 5.1.0 to 5.2.1 (#221)

Bumps [stylelint-scss](https://github.com/stylelint-scss/stylelint-scss) from 5.1.0 to 5.2.1.
- [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@v5.1.0...v5.2.1)

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

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

package.json

@@ -43,7 +43,7 @@
     "stylelint-config-recess-order": "^4.3.0",
     "stylelint-config-standard": "^34.0.0",
     "stylelint-config-standard-scss": "^11.0.0",
-    "stylelint-scss": "^5.1.0",
+    "stylelint-scss": "^5.2.1",
     "stylelint-stylistic": "^0.4.3"
   },
   "devDependencies": {