update ecmarkup

Author: Jack-Works

package.json

@@ -13,8 +13,8 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "@tc39/ecma262-biblio": "^2.1.2775",
-    "ecmarkup": "^20.0.0"
+    "@tc39/ecma262-biblio": "^2.1.2963",
+    "ecmarkup": "^21.4.0"
   },
-  "packageManager": "pnpm@9.9.0+sha512.60c18acd138bff695d339be6ad13f7e936eea6745660d4cc4a776d5247c540d0edee1a563695c183a66eb917ef88f2b4feb1fc25f32a7adcadc7aaf3438e99c1"
+  "packageManager": "pnpm@9.15.9"
 }