DEV-47 - Retain callback-based subscription APIs alongside AsyncEnumerable APIs #1234

Job	Run time
test / EventStore.Client.Streams/ubuntu-latest/net6.0/ci	11m 20s
test / EventStore.Client.PersistentSubscriptions/ubuntu-latest/net6.0/ci	9m 19s
test / EventStore.Client.Operations/ubuntu-latest/net6.0/ci	3m 45s
test / EventStore.Client.UserManagement/ubuntu-latest/net6.0/ci	2m 19s
test / EventStore.Client.ProjectionManagement/ubuntu-latest/net6.0/ci	1m 36s
test / EventStore.Client.Streams/ubuntu-latest/net7.0/ci	11m 32s
test / EventStore.Client.PersistentSubscriptions/ubuntu-latest/net7.0/ci	9m 16s
test / EventStore.Client.Operations/ubuntu-latest/net7.0/ci	2m 21s
test / EventStore.Client.UserManagement/ubuntu-latest/net7.0/ci	2m 19s
test / EventStore.Client.ProjectionManagement/ubuntu-latest/net7.0/ci	5m 48s
test / EventStore.Client.Streams/ubuntu-latest/net8.0/ci	10m 24s
test / EventStore.Client.PersistentSubscriptions/ubuntu-latest/net8.0/ci	9m 15s
test / EventStore.Client.Operations/ubuntu-latest/net8.0/ci	1m 56s
test / EventStore.Client.UserManagement/ubuntu-latest/net8.0/ci	2m 31s
test / EventStore.Client.ProjectionManagement/ubuntu-latest/net8.0/ci	1m 33s
	1h 25m 14s

Provide feedback