Upgrade to Spring Integration 5.0.0.M7

Closes spring-projectsgh-10122

Author: snicoll

spring-boot-dependencies/pom.xml

@@ -164,7 +164,7 @@
 <spring-batch.version>4.0.0.M3</spring-batch.version>
 <spring-data-releasetrain.version>Kay-RC3</spring-data-releasetrain.version>
 <spring-hateoas.version>0.23.0.RELEASE</spring-hateoas.version>
-<spring-integration.version>5.0.0.M6</spring-integration.version>
+<spring-integration.version>5.0.0.M7</spring-integration.version>
 <spring-kafka.version>2.0.0.RC1</spring-kafka.version>
 <spring-ldap.version>2.3.1.RELEASE</spring-ldap.version>
 <spring-mobile.version>2.0.0.M1</spring-mobile.version>