Update notification system to allow retries and higher timeouts

The BB tools uses the webhook notification system to know when tasks have failed in Evergreen and it should begin processing those failures. The BB backend has an endpoint set up that Evergreen hits whenever a task fails.

Right now, that notification logic has a built in 10sec timeout and does not support retries. Given that the BB tools is using this logic as a notification to begin processing events, it would be great if we could tweak the notification system to more robustly send webhook events.

For context:

https://mongodb.slack.com/archives/G979SL0HM/p1659971835569519