Update dev-dependencies

Author: wooorm

package.json

@@ -62,8 +62,8 @@
     "mdast-util-to-hast": "^11.0.0",
     "micromark-build": "^1.0.0",
     "prettier": "^2.0.0",
-    "rehype-parse": "^7.0.0",
-    "rehype-stringify": "^8.0.0",
+    "rehype-parse": "^8.0.0",
+    "rehype-stringify": "^9.0.0",
     "remark-cli": "^9.0.0",
     "remark-preset-wooorm": "^8.0.0",
     "rimraf": "^3.0.0",