fix(deps): update dependency stylelint-scss to v4

Author: renovate-bot

packages/stylelint-config-ibmdotcom/package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "stylelint-config-prettier": "^9.0.0",
     "stylelint-prettier": "^2.0.0",
-    "stylelint-scss": "^3.5.3"
+    "stylelint-scss": "^4.0.0"
   },
   "devDependencies": {
     "stylelint": "^14.0.0"