Start building against Spring Integration 5.2.0 snapshots

See gh-18254

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/integration/IntegrationGraphEndpointWebIntegrationTests.java

@@ -36,7 +36,7 @@ class IntegrationGraphEndpointWebIntegrationTests {
 	void graph(WebTestClient client) {
 		client.get().uri("/actuator/integrationgraph").accept(MediaType.APPLICATION_JSON).exchange().expectStatus()
 				.isOk().expectBody().jsonPath("contentDescriptor.providerVersion").isNotEmpty()
-				.jsonPath("contentDescriptor.providerFormatVersion").isEqualTo(1.0f)
+				.jsonPath("contentDescriptor.providerFormatVersion").isEqualTo(1.1f)
 				.jsonPath("contentDescriptor.provider").isEqualTo("spring-integration");
 	}
 

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -191,7 +191,7 @@
 		<spring-data-releasetrain.version>Moore-BUILD-SNAPSHOT</spring-data-releasetrain.version>
 		<spring-framework.version>5.2.0.BUILD-SNAPSHOT</spring-framework.version>
 		<spring-hateoas.version>1.0.0.RC2</spring-hateoas.version>
-		<spring-integration.version>5.2.0.RC1</spring-integration.version>
+		<spring-integration.version>5.2.0.BUILD-SNAPSHOT</spring-integration.version>
 		<spring-kafka.version>2.3.0.RC1</spring-kafka.version>
 		<spring-ldap.version>2.3.2.RELEASE</spring-ldap.version>
 		<spring-restdocs.version>2.0.3.RELEASE</spring-restdocs.version>