Incorrect injection of builders in AWS service classes

[danotorrey]

Description

It appears that the injection of the IamClientBuilder, KinesisClientBuilder and CloudWatchLogsClientBuilder in Integrations AWS Service classes is currently being done incorrectly. In the current implementation, a single instance of the builders is injected and reused for each client creation. I suppose this has no actual symptoms (unless there is some edge case I am not seeing), since the config properties are re-written each time the client is instantiated.

See example in CloudWatchService

See here for the registration of the builders.

I suggest that the change the constructors to instead inject a Provider<> or factory class instead that creates a new builder each time one is needed instead of reusing the same one.