Bump typedoc from 0.21.5 to 0.21.6

Bumps [typedoc](https://github.com/TypeStrong/TypeDoc) from 0.21.5 to 0.21.6.
- [Release notes](https://github.com/TypeStrong/TypeDoc/releases)
- [Commits](https://github.com/TypeStrong/TypeDoc/compare/v0.21.5...v0.21.6)

---
updated-dependencies:
- dependency-name: typedoc
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -70,7 +70,7 @@
     "svg-inline-loader": "^0.8.2",
     "ts-loader": "^9.2.3",
     "tslib": "^2.3.1",
-    "typedoc": "^0.21.5",
+    "typedoc": "^0.21.6",
     "typescript": "^4.3.5",
     "val-loader": "4.0.0",
     "webpack": "^5.51.1",