Build net6.0-android apps with .NET 7 SDK

[jonathanpeppers]

Android application type

Android for .NET (net6.0-android, etc.)

Affected platform version

.NET 6

Description

Context: dotnet/maui#9192

We will have to likely do something here:

https://github.com/xamarin/xamarin-android/blob/5c61a99c15db887010a3fcd77e4d227e03fa632f/src/Xamarin.Android.Build.Tasks/Microsoft.NET.Sdk.Android/WorkloadManifest.in.json#L17

We might have to do something to bring in .NET 6 packs appropriately from dotnet/runtime.

Steps to Reproduce

n/a

Did you find any workaround?

No response

Relevant log output

No response

[jonathanpeppers]

This is fixed in #7310 and I forgot to link it to this issue.