fix: pass cwd to CSS rating

Attempts to resolve the issue where the CSS rating can't find a dependency.

Author: crisbeto

runner/ratings/built-in-ratings/valid-css-rating.ts

@@ -18,6 +18,7 @@ export const validCssRating: PerFileRating = {
   rate: async (code, _filePath) => {
     const linterResult = await stylelint.lint({
       code: code,
+      cwd: import.meta.dirname,
       config: {
         extends: ['stylelint-config-recommended-scss'],
         defaultSeverity: 'warning',