Flaky CI test in dataplane_cli tests

``` 2026-02-26T16:34:38.6084655Z F. 2026-02-26T16:34:38.6085015Z ====================================================================== 2026-02-26T16:34:38.6086586Z FAIL: test_server_scales_up_function_executors_for_slow_function (__main__.TestServerFunctionExecutorScalingDataplane.test_server_scales_up_function_executors_for_slow_function) 2026-02-26T16:34:38.6088075Z When running long functions, the server should scale up and 2026-02-26T16:34:38.6088744Z ---------------------------------------------------------------------- 2026-02-26T16:34:38.6089317Z Traceback (most recent call last): 2026-02-26T16:34:38.6098092Z File "/home/runner/work/indexify/indexify/indexify/tests/./dataplane_cli/test_server_fe_scaling.py", line 82, in test_server_scales_up_function_executors_for_slow_function 2026-02-26T16:34:38.6099416Z self.assertGreaterEqual(len(fe_ids), 2) 2026-02-26T16:34:38.6099980Z AssertionError: 1 not greater than or equal to 2 2026-02-26T16:34:38.6100334Z 2026-02-26T16:34:38.6100556Z ---------------------------------------------------------------------- 2026-02-26T16:34:38.6101037Z Ran 2 tests in 36.330s 2026-02-26T16:34:38.6101233Z 2026-02-26T16:34:38.6101354Z FAILED (failures=1) 2026-02-26T16:34:38.6510581Z FAILED: ./dataplane_cli/test_server_fe_scaling.py (Dataplane CLI) ``` Example: https://github.com/tensorlakeai/indexify/actions/runs/22451258533/job/65020408223