chore: Update postcss-selector-parser@7.1.0

Author: pioug

package.json

@@ -75,7 +75,7 @@
     "@eslint-community/eslint-utils": "^4.4.0",
     "natural-compare": "^1.4.0",
     "nth-check": "^2.1.1",
-    "postcss-selector-parser": "^6.0.15",
+    "postcss-selector-parser": "^7.1.0",
     "semver": "^7.6.3",
     "xml-name-validator": "^4.0.0"
   },