test: make TestPreparingProgress stable #22965

Job	Run time
chunks (1, Unit Test(1))	3m 48s
chunks (1, Unit Test(1))	4m 17s
chunks (2, Unit Test(2))	2m 59s
chunks (2, Unit Test(2))	2m 59s
chunks (3, Unit Test(3))	3m 48s
chunks (3, Unit Test(3))	4m 22s
chunks (4, Tests(1))	3m 48s
chunks (4, Tests(1))	4m 43s
chunks (5, Tests(2))	3m 47s
chunks (5, Tests(2))	4m 14s
chunks (6, Tools Test)	3m 47s
chunks (6, Tools Test)	4m 46s
chunks (7, Client Integration Test)	3m 46s
chunks (7, Client Integration Test)	4m 25s
chunks (8, TSO Integration Test)	3m 45s
chunks (8, TSO Integration Test)	4m 23s
chunks (9, MicroService Integration(!TSO))	3m 31s
chunks (9, MicroService Integration(!TSO))	3m 32s
chunks (10, MicroService Integration(TSO))	3m 48s
chunks (10, MicroService Integration(TSO))	4m 45s
report-coverage	0s
report-coverage	9s
	1h 19m 22s

Provide feedback