Improve timer test #2097

Job	Run time
export-reid-models	2m 24s
mot-metrics-benchmark (ubuntu-latest, 3.9)	2m 23s
evolution (ubuntu-latest, 3.9)	2m 2s
tests	2m 21s
mot-metrics-benchmark (ubuntu-latest, 3.11)	1m 58s
evolution (ubuntu-latest, 3.11)	1m 40s
tracking-methods (ubuntu-latest, 3.11)	1m 37s
tracking-with-pose	1m 36s
tracking-with-seg	1m 20s
tracking-methods (macos-14, 3.11)	1m 25s
tracking-with-yolos	1m 21s
check-failures	1s
	20m 8s

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