Fix schema issue with install_to: GameData/Mods

[HebaruSan]

Problem

KSP-CKAN/KSP2-NetKAN#81

install:
  - find: BetterPartsManager
    install_to: GameData/Mods

https://github.com/KSP-CKAN/KSP2-NetKAN/actions/runs/5930964431/job/16081829297

Cause

https://cswr.github.io/JsonSchema/spec/generic_keywords/

GameData/Mods is too correct; it matches both of these:

CKAN/CKAN.schema

Lines 440 to 444 in 858d71f

	{
	"description" : "Spec v1.2 GameData path",
	"type" : "string",
	"pattern" : "^GameData/"
	},

CKAN/CKAN.schema

Lines 460 to 463 in 858d71f

	{
	"description" : "KSP2 default mods folder",
	"enum" : [ "GameData/Mods" ]
	},

And the tooling apparently doesn't like that. How this could ever possibly be useful is quite beyond me.

Changes

I want to keep the explicit definition of the KSP2 default folder independent of what happens elsewhere in the list, so now the install_to part uses anyOf instead of oneOf, which will allow more than one match.

FYI to @NathanPeake.

[HebaruSan]

Seems to work.

https://github.com/KSP-CKAN/KSP2-NetKAN/actions/runs/5930964431/job/16084267518