Fix Netkan check for Ships/Script spec_version

[HebaruSan]

Background

kOS scripts are installed to Ships/Script. We added support for this in #3180, including a Netkan validation check that the spec_version was v1.29 or later, since earlier versions of CKAN wouldn't support it.

Problem

The check only triggers for one specific case:

install:
  - install_to: Ships/Script

There are other ways to install into that path:

install:
  - file: some/path/Script
    install_to: Ships

install:
  - find: some/path/Script
    install_to: Ships

install:
  - file / find: whatever
    install_to: Ships
    as: Script

Remembered while reviewing KSP-CKAN/NetKAN#9443, which almost slipped by with a bad spec_version because of it.

Changes

Now the Netkan validation checks for these other cases. It may still miss some things, but it's better than no check at all.

[techman83]

That makes sense!