message: mstarch: fixing python setup
diff: export USABLE_VENV="${FPRIME_DIR}/ci-venv"
  echo -e "${BLUE}Preparing VENV at: ${USABLE_VENV}${NOCOLOR}"
  rm -r "${USABLE_VENV}"
  -python -m venv "{$USABLE_VENV}"
  +python3 -m venv "{$USABLE_VENV}"
  . "${USABLE_VENV}/bin/activate"
  echo -e "Installing PIP Packages"
  pip install ./Fw/Python || fail_and_stop "Failed to install fprime PIP module from ./Fw/Python"
  