This takes care of a possible arbitary code execution, which could potentially occur on a misconfigured system.
Fixes #191 (closed) by loading the axis value as correct type (float) instead of int
"newer" config files, generated since !304 (merged) was merged cannot be loaded anymore, but this luckily hasn't been part of a release yet. The file needs to be manually removed for now and should be located in ~/.local/share/godot/app_userdata/Super Tux Party/controls.cfg on Linux (maybe Mac as well) and probably at a similar path in %APPDATA% on windows