Add documentation for --iso <version> patrol_cli

[Ortes]

Use case

I was stuck on an iOS version error:

	xcodebuild: error: Unable to find a device matching the provided destination specifier:
			{ platform:iOS Simulator, OS:latest, name:iPhone 16 }
	
		The requested device could not be found because no available devices matched the request.

I found that if no --ios version defaults to latest that was failing. I had to clone the git and search in the code how to change this.

Proposal

Add documentation for the --ios

And maybe more generally make sure all cli options are documented.

    final iosOpts = IOSAppOptions(
      flutter: flutterOpts,
      scheme: flutterOpts.buildMode.createScheme(flavor),
      configuration: flutterOpts.buildMode.createConfiguration(flavor),
      simulator: boolArg('simulator'),
      osVersion: stringArg('ios') ?? 'latest',
      appServerPort: super.appServerPort,
      testServerPort: super.testServerPort,
      clearPermissions: boolArg('clear-permissions'),
    );

If it actually is I am very sorry about that, I didn't find it

[Ortes]

I have found the ios flag in the --help of the cli but I don't think it is present in the documentation and thus not indexed