chore(deps-dev): bump typedoc from 0.19.2 to 0.20.30

Bumps [typedoc](https://github.com/TypeStrong/TypeDoc) from 0.19.2 to 0.20.30.
- [Release notes](https://github.com/TypeStrong/TypeDoc/releases)
- [Commits](https://github.com/TypeStrong/TypeDoc/compare/v0.19.2...v0.20.30)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -49,7 +49,7 @@
     "ts-loader": "^8.0.17",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
-    "typedoc": "^0.19.2",
+    "typedoc": "^0.20.30",
     "typedoc-neo-theme": "^1.1.0",
     "typedoc-plugin-external-module-name": "^4.0.6",
     "typescript": "^3.9.9",