AP_ESC_Telem: fix other timeout race #45345

Job	Run time
build (stm32f7, chibios, 10)	7m 43s
build (stm32h7, chibios, 10)	6m 37s
build (fmuv2-plane, chibios, 10)	3m 10s
build (periph-build, chibios, 10)	4m 23s
build (iofirmware, chibios, 10)	1m 42s
build (CubeOrange-bootloader, chibios, 10)	48s
build (fmuv3-bootloader, chibios, 10)	50s
build (revo-bootloader, chibios, 10)	48s
build (stm32h7-debug, chibios, 10)	3m 57s
build (fmuv3, chibios, 10)	10m 6s
build (revo-mini, chibios, 10)	7m 22s
build (MatekF405-Wing, chibios, 10)	8m 8s
build (CubeOrange-ODID, chibios, 10)	5m 25s
build (CubeRedPrimary-bootloader, chibios, 10)	47s
build (configure-all, chibios, 10)	11m 22s
build (build-options-defaults-test, chibios, 10)	15m 4s
build (signing, chibios, 10)	4m 36s
build (CubeOrange-PPP, chibios, 10)	3m 52s
build (CubeRed-EKF2, chibios, 10)	3m 36s
build (SOHW, chibios, 10)	6m 46s
build (Pixhawk6X-PPPGW, chibios, 10)	1m 18s
build (new-check, chibios, 10)	9m 0s
	1h 57m 20s

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