[BUG] BLTOUCH_SET_5V_MODE enabled on 3.3v controller and the pins are not 5v tolerant

[ellensp]

CONFIG_EXAMPLES_DIR "Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch"

Configuration_adv.h https://github.com/MarlinFirmware/Configurations/blob/bugfix-2.0.x/config/examples/Creality/Ender-5%20Pro/BigTreeTech%20SKR%20Mini%20E3%202.0%20with%20BLTouch/Configuration_adv.h

Has #define BLTOUCH_SET_5V_MODE

But

The pins file https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/blob/master/hardware/BTT%20SKR%20MINI%20E3%20V2.0/Hardware/BTT%20SKR%20MINI%20E3%20V2.0-PIN.pdf
Says Z-stop pin is PC2 and the probe port use PC14

According to the datasheet https://www.st.com/resource/en/datasheet/stm32f103rc.pdf
Nether of these two pins are 5v tolerant.