Start building against Spring Integration 7.0.0-RC1 snapshots

See gh-47494

platform/spring-boot-dependencies/build.gradle

@@ -2452,7 +2452,7 @@ bom {
 			releaseNotes("https://github.com/spring-projects/spring-hateoas/releases/tag/{version}")
 		}
 	}
-	library("Spring Integration", "7.0.0-M3") {
+	library("Spring Integration", "7.0.0-SNAPSHOT") {
 		considerSnapshots()
 		group("org.springframework.integration") {
 			bom("spring-integration-bom")

smoke-test/spring-boot-smoke-test-integration/src/main/java/smoketest/integration/SampleIntegrationApplication.java

@@ -26,8 +26,8 @@ import org.springframework.integration.channel.DirectChannel;
 import org.springframework.integration.dsl.IntegrationFlow;
 import org.springframework.integration.dsl.Pollers;
 import org.springframework.integration.dsl.SourcePollingChannelAdapterSpec;
-import org.springframework.integration.file.FileReadingMessageSource;
+import org.springframework.integration.file.inbound.FileReadingMessageSource;
-import org.springframework.integration.file.FileWritingMessageHandler;
+import org.springframework.integration.file.outbound.FileWritingMessageHandler;
 import org.springframework.util.Assert;
 
 @SpringBootApplication

smoke-test/spring-boot-smoke-test-parent-context/src/main/java/smoketest/parent/SampleParentContextApplication.java

@@ -28,8 +28,8 @@ import org.springframework.integration.channel.DirectChannel;
 import org.springframework.integration.dsl.IntegrationFlow;
 import org.springframework.integration.dsl.Pollers;
 import org.springframework.integration.dsl.SourcePollingChannelAdapterSpec;
-import org.springframework.integration.file.FileReadingMessageSource;
+import org.springframework.integration.file.inbound.FileReadingMessageSource;
-import org.springframework.integration.file.FileWritingMessageHandler;
+import org.springframework.integration.file.outbound.FileWritingMessageHandler;
 import org.springframework.util.Assert;
 
 @SpringBootApplication