Auto-configuration for Rabbit Streams doesn't consider RabbitConnectionDetails

[wilkinsona]

The auto-configuration for Rabbit Streams looks at the spring.rabbit.stream.* properties for various settings, sometimes falling back to a more general spring.rabbit property:

spring-boot/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/amqp/RabbitStreamConfiguration.java

Lines 102 to 115 in 99142db

	static EnvironmentBuilder configure(EnvironmentBuilder builder, RabbitProperties properties) {
	builder.lazyInitialization(true);
	RabbitProperties.Stream stream = properties.getStream();
	PropertyMapper map = PropertyMapper.get();
	map.from(stream.getHost()).to(builder::host);
	map.from(stream.getPort()).to(builder::port);
	map.from(stream.getVirtualHost())
	.as(withFallback(properties::getVirtualHost))
	.whenNonNull()
	.to(builder::virtualHost);
	map.from(stream.getUsername()).as(withFallback(properties::getUsername)).whenNonNull().to(builder::username);
	map.from(stream.getPassword()).as(withFallback(properties::getPassword)).whenNonNull().to(builder::password);
	return builder;
	}

This fallback logic is incorrect as it ignores any RabbitConnectionDetails that may have been defined so, for example, a @ServiceConnection for Rabbit running in a container won't work correctly when using streams.