Polishing according latest SPR-4.0.0 fixes

* Remove `@Ignore` from `MongoDbMessageStoreTests#testInt3153SequenceDetails()`
* Revert generic for `SessionFactory` field in `SftpServerOutboundTests`

spring-integration-mongodb/src/test/java/org/springframework/integration/mongodb/store/MongoDbMessageStoreTests.java

@@ -126,7 +126,7 @@ public class MongoDbMessageStoreTests extends MongoDbAvailableTests{
 		assertEquals("channel", fooChannelHistory.get("type"));
 	}
 
-	@Test @Ignore
+	@Test
 	@MongoDbAvailable
 	public void testInt3153SequenceDetails() throws Exception{
 		MongoDbFactory mongoDbFactory = this.prepareMongoFactory();

spring-integration-sftp/src/test/java/org/springframework/integration/sftp/outbound/SftpServerOutboundTests.java

@@ -87,9 +87,8 @@ public class SftpServerOutboundTests {
 	@Autowired
 	private DirectChannel inboundMGetRecursiveFiltered;
 
-	@SuppressWarnings("rawtypes")
 	@Autowired
-	private SessionFactory sessionFactory;
+	private SessionFactory<?> sessionFactory;
 
 	@Before
 	public void setup() throws Exception {