fix(deps): update dependency postcss-selector-parser to v7

Author: renovate[bot]

package-lock.json

@@ -108,7 +108,7 @@
     "postcss": "^8.4.31",
     "postcss-safe-parser": "^6.0.0",
     "postcss-scss": "^4.0.3",
-    "postcss-selector-parser": "^6.0.9",
+    "postcss-selector-parser": "^7.0.0",
     "postcss-styl": "^0.12.0"
   },
   "peerDependencies": {