Update dependency typedoc to v0.23.15

Author: renovate[bot]

package.json

@@ -46,7 +46,7 @@
     "tslint": "6.1.3",
     "tslint-config-prettier": "1.18.0",
     "typescript": "4.3.2",
-    "typedoc": "0.20.36",
+    "typedoc": "0.23.15",
     "ts-jest": "26.5.6",
     "jest": "27.0.4",
     "jest-extended": "0.11.5",