Update mdast-util-to-string

Author: wooorm

package.json

@@ -35,7 +35,7 @@
   "types": "types",
   "dependencies": {
     "@types/mdast": "^3.0.0",
-    "mdast-util-to-string": "^1.0.0",
+    "mdast-util-to-string": "^2.0.0",
     "micromark": "~2.10.0",
     "parse-entities": "^2.0.0"
   },