Native libraries don't compile when the Godot Mono path is `godot-mono` instead of `godot`

[PullSL]

Describe the bug

The build script only checks for godot in its path when Godot Mono is godot-mono when installed through a package manager (pacman).

To Reproduce

1. Install Godot Mono
2. Run dotnet run --project Scripts -- native Build Install in project directory
3. See error

Expected behaviour

Both the godot and godot-mono binaries are checked and it builds.

Screenshots

No response

System information

OS: Arch Linux
Thrive Version: commit 97c4738

Game Logs

https://pastebin.com/pPcRaNPV

Additional Context

This happens without the normal Godot installed too.

[hhyyrylainen]

I think if this is changed in one place, we should, in one go, update all the places that check for "godot" executable. So probably should create a helper function that first looks for godot-mono and then for godot (as that's probably slightly more "expected" order) and remembers what it finds for scripts that run multiple godot processes to avoid repeated lookups.