Fix vconfig_vars call

src/mpsd_software_manager/cmds/available.py

src/mpsd_software_manager/cmds/init.py

src/mpsd_software_manager/cmds/prepare.py

src/mpsd_software_manager/cmds/status.py

src/mpsd_software_manager/utils/filesystem_utils.py

src/mpsd_software_manager/utils/logging.py

src/mpsd_software_manager/utils/microarch.py

tests/test_init.py

tests/test_install.py

tests/test_logging.py