Upgrade to Spring Amqp 1.7.12.RELEASE

Closes gh-15680

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -153,7 +153,7 @@
 		<solr.version>5.5.5</solr.version>
 		<spock.version>1.0-groovy-2.4</spock.version>
 		<spring.version>4.3.22.RELEASE</spring.version>
-		<spring-amqp.version>1.7.11.RELEASE</spring-amqp.version>
+		<spring-amqp.version>1.7.12.RELEASE</spring-amqp.version>
 		<spring-cloud-connectors.version>1.2.7.RELEASE</spring-cloud-connectors.version>
 		<spring-batch.version>3.0.10.RELEASE</spring-batch.version>
 		<spring-data-releasetrain.version>Ingalls-SR18</spring-data-releasetrain.version>