[minor][tests] Fix test testDanglingDroppingTableDuringBinlogMode due… #1562

Job	Run time
license_check	3m 26s
migration_test_ut	3m 58s
compile_and_test (8, core)	8m 9s
compile_and_test (8, pipeline_connectors)	13m 35s
compile_and_test (8, mysql)	36m 16s
compile_and_test (8, postgres)	24m 51s
compile_and_test (8, oracle)	29m 24s
compile_and_test (8, mongodb)	56m 36s
compile_and_test (8, sqlserver)	12m 22s
compile_and_test (8, tidb)	2m 51s
compile_and_test (8, oceanbase)	6m 4s
compile_and_test (8, db2)	20m 15s
compile_and_test (8, vitess)	2m 43s
compile_and_test (8, pipeline_e2e)	1h 18m 52s
compile_and_test (8, source_e2e)	1h 17m 5s
pipeline_migration_test (8)	12m 39s
data_stream_migration_test (8)	25m 35s
pipeline_migration_test (11)	13m 4s
data_stream_migration_test (11)	25m 12s
	7h 32m 57s

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