Pin typedoc to 0.25.0

Author: Drarig29

.github/workflows/tests.yml

@@ -15,5 +15,5 @@ jobs:
       - run: npm run lint
       - name: Test documentation
         run: |
-          npm install typedoc
+          npm install typedoc@0.25.0
           npx typedoc src/index.ts --excludePrivate --excludeExternals --treatValidationWarningsAsErrors