Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-dotnet@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The type 'TKey' cannot be used as type parameter 'TKey' in the generic type or method 'IDictionary<TKey, TValue>'. Nullability of type argument 'TKey' doesn't match 'notnull' constraint.