fix(utils): package exports (#5847)

Author: userquin

packages/utils/package.json

@@ -47,6 +47,9 @@
   "types": "./dist/index.d.ts",
   "typesVersions": {
     "*": {
+      "ast": [
+        "dist/ast.d.ts"
+      ],
       "source-map": [
         "dist/source-map.d.ts"
       ]