Upgrade Git SDK distribution to newer version

[rat-moonshine]

During the testing of git-authentication on private repositories, I noticed authentication problem using the Windows' native git-auth window. Details here - Moonshine-IDE/Moonshine-IDE#617 (comment).

Upon investigation it reveled that it needs a Git SDK version update, while @Aszusz have reported he didn't have the problem using more newer Git SDK.

Expected version update to: 2.30.0.windows.1/2
Current version: 2.20.1.windows.1/2

[rat-moonshine]

Downloading version now updated to download v2.30.1. Tested locally, Moonshine Windows build is currently failing.

We need to have this change roll-out along with the next Moonshine release, or before.

[JoelProminic]

I need to do a quick test, and then we should be able to close the issue. The change is in master now.

[piotrzarzycki21]

It's working fine.