feat(compiler-sfc): bump postcss-modules to v6

Author: yyx990803

packages/compiler-sfc/package.json

@@ -49,7 +49,7 @@
     "lru-cache": "^10.1.0",
     "merge-source-map": "^1.1.0",
     "minimatch": "^9.0.3",
-    "postcss-modules": "^4.3.1",
+    "postcss-modules": "^6.0.0",
     "postcss-selector-parser": "^6.0.13",
     "pug": "^3.0.2",
     "sass": "^1.69.5"