Shebang cannot be overridden by machine file

[QuLogic]

Describe the bug
On Windows, Meson can automatically run a script by parsing the interpreter out of the shebang line, which is pretty convenient. But unlike compilers, it does not seem that this can be overridden in a machine file. This is the first part of #12346

To Reproduce
With this meson.build:

project('shell')

example = find_program('example.sh')

result = run_command(example, capture: true, check: true)

message(result)

this example.sh:

#!/bin/foo

echo "Example"

and this native.ini:

[binaries]
foo = 'c:\\program files\\git\\bin\\bash.exe'

running as:

> meson setup --native-file native.ini build

This fails to configure:

The Meson build system
Version: 1.2.1
Source dir: C:\Users\quant\shell
Build dir: C:\Users\quant\shell\build
Build type: native build
Project name: shell
Project version: undefined
Host machine cpu family: x86_64
Host machine cpu: x86_64
Program example.sh found: YES (foo C:\Users\quant\shell\example.sh)

meson.build:5:9: ERROR: Could not execute command `foo C:\Users\quant\shell\example.sh`.

A full log can be found at C:\Users\quant\shell\build\meson-logs\meson-log.txt

Expected behavior
Running the script directly with the shell from the native file works:

"c:\program files\git\bin\bash.exe" example.sh
Example

and I'd expect the same to happen in Meson.

system parameters

• Is this a cross build or just a plain native build (for the same computer)? Native
• what operating system? Windows 11
• what Python version? Whatever is bundled in the MSI
• what meson --version? 1.2.1
• what ninja --version if it's a Ninja build? N/A