The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Possible null reference argument for parameter 'webhook' in 'Task TaskHelper.PostTaskNotification(string webhook, TaskItem item, string title, string baseUrl)'.

Possible null reference argument for parameter 'baseUrl' in 'Task TaskHelper.PostTaskNotification(string webhook, TaskItem item, string title, string baseUrl)'.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Possible null reference argument for parameter 'baseUrl' in 'string TaskHelper.GetConnectorCardJson(TaskItem task, string title, string baseUrl)'.

Possible null reference argument for parameter 'webhook' in 'Task TaskHelper.PostTaskNotification(string webhook, TaskItem item, string title, string baseUrl)'.

Possible null reference argument for parameter 'baseUrl' in 'Task TaskHelper.PostWelcomeMessage(string webhookUrl, string baseUrl)'.

Possible null reference argument for parameter 'webhook' in 'Task TaskHelper.PostTaskNotification(string webhook, TaskItem item, string title, string baseUrl)'.

Possible null reference argument for parameter 'baseUrl' in 'Task TaskHelper.PostTaskNotification(string webhook, TaskItem item, string title, string baseUrl)'.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.