ServiceBus completes messages even when ReceiveMode is ReadAndDelete

[bruno-brant]

You are only supposed to call CompleteMessage if the receive mode is PeekLock, but ServiceBus is calling the method unconditionally.

https://github.com/Avanade/Liquid-Application-Framework/blob/f312143f5daf023eeb7c62b4f6bbdef7d1a24c94/src/Liquid.OnAzure/MessageBuses/ServiceBus.cs#L93

More information: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-performance-improvements#receive-mode

[bruno-brant]

I'm marking this issue as priority because it's affecting one of our customers.