Add a test task to run the installer with real data from Neoforge

[shartte]

This pulls in an existing installer from Maven and merges its data with the output of this project to produce a runnable real production installer.

This simplifies testing of this project significantly. Just run runProductionTest.

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: 8fc532ca22c8307671cee603c29d26ac3b0ec6c7.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:legacyinstaller:3.0.7-pr-5-prodtesttask

Repository Declaration

In order to use the artifacts published by the PR, add the following repository to your buildscript:

repositories {
    maven {
        name 'Maven for PR #5' // https://github.com/neoforged/LegacyInstaller/pull/5
        url 'https://prmaven.neoforged.net/LegacyInstaller/pr5'
        content {
            includeModule('net.neoforged', 'legacyinstaller')
        }
    }
}