ProxSpace v3.8

Changelog:

• Remove not installed cached packages
• Updated msys2 base
• Updated packages
• Added python pip
• Added required python packages

This version includes:

• msys2-x86_64-20210215
• arm-none-eabi-gcc
• arm-none-eabi-gdb
• OpenOCD
• git
• make
• cmake
• gcc
• gdb
• Qt5
• readline
• pkg-config
• libsndfile
• lua
• bzip2
• python
• jansson