[utest] optimize the utest to support new CI #4765

Job	Run time
RT-Thread Online Packages (STM32F407 RT-Spark)	7m 38s
RTduino/Arduino Libraries (STM32F412 Nucleo)	11m 39s
RTduino/Arduino Libraries (Raspberry Pico)	15m 20s
others_at32_hc32_ht32	6m 21s
stm32l4_f0_f1	12m 2s
stm32_f2_f4	9m 1s
stm32_f7_g0_h7_mp15_u5_h5_wb5	6m 6s
nxp_renesas	5m 53s
nuvoton	6m 15s
gd32_n32_apm32	6m 0s
Infineon_TI_microchip	6m 24s
mips	2m 55s
aarch64	4m 47s
riscv-none	2m 41s
riscv64-unknown	3m 10s
hpmicro	2m 53s
llvm-arm	5m 46s
simulator	2m 18s
ESP32C3	25m 8s
i386-unknown	3m 53s
nordic(yml)	10m 56s
	2h 37m 6s

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