Remove irrelevant options from version help message

[lwronski]

It change the output of version help message to:

Usage: scala-cli version [options]
Print the version of the scala runner and the default version of Scala (unless specified in the project).

The version of the scala runner is the version of the command-line tool that runs Scala programs, which
is distinct from the Scala version of a program. We recommend you specify the version of Scala of a
program in the program itself (via a configuration directive). Otherwise, the runner falls back to the default
Scala version defined by the runner.

Version options:
  --cli, --cli-version      Show only plain version
  --scala, --scala-version  Show only plain scala version

Help options:
  --usage            Print usage and exit
  -h, -help, --help  Print help message and exit

I added @julienrf as co-authored commit who created the help message content. Help message was copied from #1666 (comment).

Fixes #1666.