[FLINK-38541][checkpoint] Randomize UNALIGNED_DURING_RECOVERY_ENABLED for testing

Author: 1996fanrui

flink-test-utils-parent/flink-test-utils/src/main/java/org/apache/flink/streaming/util/TestStreamEnvironment.java

@@ -148,6 +148,7 @@ private static void randomizeConfiguration(MiniCluster miniCluster, Configuratio
             randomize(conf, CheckpointingOptions.ENABLE_UNALIGNED, true, false);
             randomize(
                     conf, CheckpointingOptions.UNALIGNED_RECOVER_OUTPUT_ON_DOWNSTREAM, true, false);
+            randomize(conf, CheckpointingOptions.UNALIGNED_DURING_RECOVERY_ENABLED, true, false);
             randomize(
                     conf,
                     CheckpointingOptions.ALIGNED_CHECKPOINT_TIMEOUT,