Bigtable flaky test - ClientConfigurationManagerTest#testDeadlockPrevention

[lqiu96]

Logs:

2026-07-24T21:48:01.5439431Z 21:48:01:540 [INFO] Running com.google.cloud.bigtable.data.v2.internal.util.ClientConfigurationManagerTest
2026-07-24T21:48:01.5618709Z 21:48:01 [INFO   ] com.google.cloud.bigtable.data.v2.internal.util.ClientConfigurationManager <init>: Local client config override: session_configuration { session_load: 0.75 session_pool_configuration { headroom: 0.7 } } 
2026-07-24T21:48:01.5826300Z 21:48:01 [INFO   ] com.google.cloud.bigtable.data.v2.internal.util.ClientConfigurationManager <init>: Local client config override: session_configuration { } 
2026-07-25T03:35:55.9679306Z ##[error]The operation was canceled.

Timestamps
Test start: 21:48:01.5439431Z
Test timeout: 03:35:55.9679306Z (~6 hours later)