as_user is no longer supported

[gsilvapt]

Confirmation

• My issue isn't already found on the issue tracker.
• I have replicated my issue using the latest version and it is still present.

Related software versions.

<=0.0.6

Affected version(s)

All

Link to debug output

No response

Panic output

SlackApiError
The request to the Slack API failed. (url: https://www.slack.com/api/chat.postMessage)
The server responded with: {'ok': False, 'error': 'invalid_arguments', 'deprecated_argument': 'as_user'}

Expected output

When sending notifications, it should be possible to change the user but since Slack deprecated bots in favour of Apps, it's not clear that can work anymore.

Actual output

Notification is not sent due to the error shown in output error field.

Steps to reproduce

1. Create an event and configure a custom user for slack messages.
   

2. Run the job that sends notification.

3. Will fail with an error like the above.

Additional factoids

No response

References

No response