"make setup" fails on Windows. Jesse said with wsl, we look for arduino-cli when we should be looking for arduino-cli.exe

[detzt]

Describe the bug
Running make setup on Windows fails with the following output:

$ VERBOSE=1 make setup
Using ardino-cli from /c/Users/LA/repos/Kaleidoscope/bin/arduino-cli
Error during build: Plattform 'keyboardio:avr' nicht gefunden: Plattform nicht installiert
Try running `arduino-cli.exe core install keyboardio:avr`
make: *** No rule to make target '/c/Users/LA/repos/Kaleidoscope/bin/arduino-cli', needed by 'setup'.  Stop.

As suggested by Jesse I tried ARDUINO_CLI_PATH=bin/arduino-cli.exe VERBOSE=1 QUIET= make setup and it worked.

To Reproduce
Trying to run make setup on Windows.

Expected behavior
Following the steps in the README works on Windows as well.

Environment (please complete the following information):

• OS: Windows 10
• Version Windows 10 22H2
• Device Keyboardio Model 100

Additional context
See messages in Discord around: https://discord.com/channels/492408953041321984/492907083583455246/1220790243280552017