Run changeStreamSplitLargeEvent test on >= 6.0.9 (#1196)

JAVA-5078

Author: katcharov

driver-sync/src/test/functional/com/mongodb/client/ChangeStreamProseTest.java

@@ -408,7 +408,7 @@ public void test16GetResumeTokenReturnsIdOfPreviousDocument() {
 
     @Test
     public void test19SplitChangeStreamEvents() {
-        assumeTrue(serverVersionAtLeast(7, 0));
+        assumeTrue(serverVersionAtLeast(6, 0));
         collection.drop();
         database.createCollection(
                 getClass().getName(),