Deprecate Xamarin.AndroidX.Legacy.Support.V4

### Android application type

Not applicable

### Affected platform version

N/A

### Description

Like said in the [blogpost](https://devblogs.microsoft.com/dotnet/dotnet-8-performance-improvements-in-dotnet-maui/#removed-xamarin-androidx-legacy-support-v4) the package `Xamarin.AndroidX.Legacy.Support.V4` should not be used anymore.

I would suggest deprecating the nuget package so that people are warned about it and will not easily install/use it anymore.

### Steps to Reproduce

N/A

### Did you find any workaround?

_No response_

### Relevant log output

_No response_