Add Arch linux default stm32cubeprog installation path

Arch Linux aur/stm32cubeprog , installs by default to /opt/stm32cubeprog/bin
this allows the installation to work without modifying the PATH

Author: He1my

linux/stm32CubeProg.sh

@@ -39,6 +39,9 @@ check_tool() {
   if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     export PATH="$HOME/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin":$PATH
   fi
+  if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
+    export PATH="/opt/stm32cubeprog/bin":$PATH
+  fi
   if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     echo "$STM32CP_CLI not found."
     echo "Please install it or add '<STM32CubeProgrammer path>/bin' to your PATH environment:"