AOT RuntimeHints Polishing

- rename hints registrar according to convention
- use `registerSynthesizedAnnotation()`

Author: garyrussell

spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHintsRegistrar.java renamed to spring-rabbit/src/main/java/org/springframework/amqp/rabbit/aot/RabbitRuntimeHints.java

@@ -36,11 +36,11 @@
  * @since 3.0
  *
  */
-public class RabbitRuntimeHintsRegistrar implements RuntimeHintsRegistrar {
+public class RabbitRuntimeHints implements RuntimeHintsRegistrar {
 
 	@Override
 	public void registerHints(RuntimeHints hints, @Nullable	ClassLoader classLoader) {
-		RuntimeHintsUtils.registerAnnotation(hints, RabbitListener.class);
+		RuntimeHintsUtils.registerSynthesizedAnnotation(hints, RabbitListener.class);
 		ProxyHints proxyHints = hints.proxies();
 		proxyHints.registerJdkProxy(ChannelProxy.class);
 		proxyHints.registerJdkProxy(ChannelProxy.class, PublisherCallbackChannel.class);