Use substitution in the testframework mod metadata

[Matyrobbrt]

Fixes #983

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: 94792fa094bf4d474060486f03e63d2289df7ee4.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:testframework:21.0.59-beta-pr-1221-testframework-use-jar-version
• 📦 net.neoforged:neoforge:21.0.59-beta-pr-1221-testframework-use-jar-version

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 #1221' // https://github.com/neoforged/NeoForge/pull/1221
        url 'https://prmaven.neoforged.net/NeoForge/pr1221'
        content {
            includeModule('net.neoforged', 'testframework')
            includeModule('net.neoforged', 'neoforge')
        }
    }
}

MDK installation

In order to setup a MDK using the latest PR version, run the following commands in a terminal.
The script works on both *nix and Windows as long as you have the JDK bin folder on the path.
The script will clone the MDK in a folder named NeoForge-pr1221.
On Powershell you will need to remove the -L flag from the curl invocation.

mkdir NeoForge-pr1221
cd NeoForge-pr1221
curl -L https://prmaven.neoforged.net/NeoForge/pr1221/net/neoforged/neoforge/21.0.59-beta-pr-1221-testframework-use-jar-version/mdk-pr1221.zip -o mdk.zip
jar xf mdk.zip
rm mdk.zip || del mdk.zip

To test a production environment, you can download the installer from here.

[Technici4n]

I think we should investigate why this is different from the other projects. NeoForge and tests do run correctly?