Don't call the compiler twice in the scripts.

Zig sometimes doesn't cache stuff correctly.
In the presence of this bug the game might be recompiled in the second compiler command.
This doubled compile times in the worst case.

debug_linux.sh

@@ -75,4 +75,4 @@ fi
 echo "Cubyz successfully built!"
 echo "Launching Cubyz."
 
-./compiler/zig/zig build run "$@"
+./zig-out/bin/Cubyzig

debug_windows.bat

@@ -55,4 +55,4 @@ if errorlevel 1 (
 echo Cubyz successfully built!
 echo Launching Cubyz.
 
-compiler\zig\zig build run %*
+zig-out\bin\Cubyzig