Update commonmark.json

Author: wooorm

package.json

@@ -55,7 +55,7 @@
   "devDependencies": {
     "@types/node": "^20.0.0",
     "c8": "^9.0.0",
-    "commonmark.json": "^0.30.0",
+    "commonmark.json": "^0.31.0",
     "esbuild": "^0.21.0",
     "gzip-size-cli": "^5.0.0",
     "hast-util-from-html": "^2.0.0",