Support for mingwX86

Hi, when i try to build mingwX86 version it fails with

```
> Could not resolve all files for configuration ':mingwX86CompileKlibraries'.
...
> No matching variant of org.jetbrains.kotlinx:kotlinx-cli:0.3.5 was found. The consumer was configured to find a usage of 'kotlin-api' of a library, preferably optimized for non-jvm, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native', attribute 'org.jetbrains.kotlin.native.target' with value 'mingw_x86'
```

Start by reproducing the mingwX86 build and inspect the ':mingwX86CompileKlibraries' configuration and the kotlinx-cli 0.3.5 dependency resolution error. Done means the mingwX86 build resolves a compatible variant and completes successfully.

Written by the indexing model from the issue text.