chore(deps): update dependency typedoc to v0.28.5

Author: renovate[bot]

package.json

@@ -39,7 +39,7 @@
         "tslint": "6.1.3",
         "tslint-config-prettier": "1.18.0",
         "typescript": "4.0.3",
-        "typedoc": "0.19.2",
+        "typedoc": "0.28.5",
         "ts-jest": "26.4.0",
         "jest": "26.4.2",
         "jest-extended": "0.11.5",