[Feature] execute non-JS executables via yarn dlx

[cspotcode]

• I'd be willing to implement this feature (contributing guide)
• This feature is important to have in this repository; a contrib plugin wouldn't do

See also: #882

Describe the user story

As a developer, I want to write a bash script to be executed by npx or yarn dlx. I create an appropriate package.json with bin field and push it and the shell script to github. The shell script has an appropriate #!/usr/bin/env bash. This script is internal tooling meant for my team or my company, so it is safe to assume bash and a posix environment.

Unfortunately, yarn today attempts to execute bin scripts via node even when they are not js.

Describe the solution you'd like

When yarn dlx executes a bin entry which is not js, it is executed as a posix executable, not passed to node.

Describe the drawbacks of your solution

As far as I can tell, this will be backwards compatible. node scripts will continue to execute via node. But bin entries with non-node shebangs can be executed directly. Native executables can also be executed directly, I don't think this will cause particular problems. In evanw/esbuild#237 (comment), it appears that esbuild is deliberately using a native executable and has done the work to do this correctly, with cross-platform supporrt.

Describe alternatives you've considered

The motivation for using npx or yarn dlx is simplicity. Requiring a plugin is counter to this.

[merceyz]

Duplicate of #882

[merceyz]

Both yarn dlx and yarn run should support running the same things so tracking this in #882 is sufficient.