Update to Volar services 0.0.64

This updates `volar-service-markdown` and `volar-service-typescript` to
0.0.64 for `@mdx-js/language-server`.

Author: remcohaszing

packages/language-server/package.json

@@ -36,8 +36,8 @@
     "load-plugin": "^6.0.0",
     "remark-frontmatter": "^5.0.0",
     "remark-gfm": "^4.0.0",
-    "volar-service-markdown": "0.0.62",
-    "volar-service-typescript": "0.0.62"
+    "volar-service-markdown": "0.0.64",
+    "volar-service-typescript": "0.0.64"
   },
   "devDependencies": {
     "@types/node": "^22.0.0",