Start building against Spring Data Ingalls snapshots

See gh-9834

spring-boot-dependencies/pom.xml

@@ -155,7 +155,7 @@
 		<spring-amqp.version>1.7.3.RELEASE</spring-amqp.version>
 		<spring-cloud-connectors.version>1.2.4.RELEASE</spring-cloud-connectors.version>
 		<spring-batch.version>3.0.8.RELEASE</spring-batch.version>
-		<spring-data-releasetrain.version>Ingalls-SR4</spring-data-releasetrain.version>
+		<spring-data-releasetrain.version>Ingalls-BUILD-SNAPSHOT</spring-data-releasetrain.version>
 		<spring-hateoas.version>0.23.0.RELEASE</spring-hateoas.version>
 		<spring-integration.version>4.3.11.RELEASE</spring-integration.version>
 		<spring-integration-java-dsl.version>1.2.2.RELEASE</spring-integration-java-dsl.version>