New lines

Author: Mairbek Khadikov

dataflow/spanner-io/src/test/java/com/example/dataflow/SpannerGroupWriteIT.java

@@ -146,4 +146,4 @@ private DatabaseClient getDbClient() {
         .getDatabaseClient(DatabaseId.of(spannerOptions.getProjectId(), instanceId, databaseId));
   }
 
-}
+}

dataflow/spanner-io/src/test/java/com/example/dataflow/SpannerWriteIT.java

@@ -132,4 +132,4 @@ private DatabaseClient getDbClient() {
         .getDatabaseClient(DatabaseId.of(spannerOptions.getProjectId(), instanceId, databaseId));
   }
 
-}
+}