Support detectGlobalManagerConfig /detectGlobalConfig for nuget

[rarkins]

Describe the proposed change(s).

Find nuget.config in home directory, if configured

[rarkins]

npm example: https://github.com/renovatebot/renovate/blob/304335f94bc7f1e2a0764b8d090008a41f5b0944/lib/modules/manager/npm/detect.ts#L8-L23

[michha]

I will take this and try to get a PR during the next weeks. Ping me for status updates.

[hoerup]

@michha Any progress ?

it would be especially usefull if it could work together with #25052

[michha]

@hoerup We are working on it. Expect a first draft end of next week.

It got delayed by other projects, illness and vacations 😉

[Kamnn]

@michha How is the progress? When can we expect this feature? 🙂