chore(deps): update dependency typedoc to v0.21.0

Author: renovate-bot

package-lock.json

@@ -63,7 +63,7 @@
     "ts-jest": "26.5.6",
     "ts-node": "10.0.0",
     "tsconfigs": "4.0.2",
-    "typedoc": "0.20.37",
+    "typedoc": "0.21.0",
     "typescript": "4.3.4"
   },
   "publishConfig": {