godot: Editor can't find .NET when installed from the official Ubuntu feeds

Godot version

4.0.beta10.mono.official.d0398f62f

System information

Ubuntu 22.10 with dotnet 6

Issue description

If you are using Ubuntu 22.10, maybe other version, and you install .Net 6.0 from the official Ubuntu feeds, Godot 4 can’t find the .Net package’s install location and therefore can’t find /usr/share/dotnet/host/fxr.

This is because the Ubuntu feeds put the dotnet directory at usr/lib/dotnet and if you install the package directly from the Microsoft official feeds the package is at usr/share/dotnet

When launching Godot 4, the error message is: "The host fxr folder does not exist: /usr/share/dotnet/host/fxr"

Steps to reproduce

1. Start from a clean machine - you must not have any version of dotnet installed from any distribution/official feed or Microsoft feed.
2. Download Godot 4.
3. Install to /opt/godot - this mean the Godot executable is at /opt/godot4/Godot_v4.0-beta10_mono_linux.x86_64
4. Run sudo apt install dotnet-sdk-6.0
5. Run /opt/godot4/Godot_v4.0-beta10_mono_linux.x86_64

Error message

ERROR: The host fxr folder does not exist: /usr/share/dotnet/host/fxr
   at: try_get_path_from_dotnet_root (modules/mono/editor/hostfxr_resolver.cpp:323)

Minimal reproduction project

This is during the program launch, I’m happy to attach logs if that will help. I don’t think a repro project helps here.