[sscanf] use rt_sscanf to replace sscanf #4530

Job	Run time
RT-Thread Online Packages (STM32F407 RT-Spark)	7m 51s
RTduino/Arduino Libraries (STM32F412 Nucleo)	15m 23s
RTduino/Arduino Libraries (Raspberry Pico)	13m 1s
others_at32_hc32_ht32	7m 7s
stm32l4_f0_f1	15m 2s
stm32_f2_f4	9m 31s
stm32_f7_g0_h7_mp15_u5_h5_wb5	5m 46s
nxp_renesas	5m 53s
nuvoton	5m 55s
gd32_n32_apm32	5m 3s
Infineon_TI_microchip	8m 15s
mips	3m 43s
aarch64	3m 40s
riscv-none	4m 38s
riscv64-unknown	3m 54s
hpmicro	4m 7s
llvm-arm	6m 3s
simulator	3m 57s
ESP32C3	20m 23s
i386-unknown	3m 14s
nordic(yml)	11m 5s
	2h 43m 31s

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