Update FML / ModLauncher (Updates Mixin, Improved Error Reporting, Addresses Log4j2 Warnings)

[shartte]

Please note that some of the changes to gradle.properties are to bring it in line with newer transitive dependencies that come in from FML.

The PR includes the following upstream changes:
McModLauncher/modlauncher#129 [Remove package scanning in log4j2 configuration]
neoforged/FancyModLoader#173 [Updated Mixin]
neoforged/FancyModLoader#170 [Better error reporting in dev]
neoforged/FancyModLoader#174 [Bump TerminalConsoleAppender]
neoforged/FancyModLoader#167 [Refactor ModLoadingIssue Warning/Error Translations]
neoforged/FancyModLoader#164 [Remove unnecessary IConfigEvent and ConfigConfig]

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: e922e6aa3074f5925e66a978bdf52aa12e7cddc2.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:testframework:21.0.59-beta-pr-1230-bump-fml-ml
• 📦 net.neoforged:neoforge:21.0.59-beta-pr-1230-bump-fml-ml

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 #1230' // https://github.com/neoforged/NeoForge/pull/1230
        url 'https://prmaven.neoforged.net/NeoForge/pr1230'
        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-pr1230.
On Powershell you will need to remove the -L flag from the curl invocation.

mkdir NeoForge-pr1230
cd NeoForge-pr1230
curl -L https://prmaven.neoforged.net/NeoForge/pr1230/net/neoforged/neoforge/21.0.59-beta-pr-1230-bump-fml-ml/mdk-pr1230.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]

Note: CI is failing.

[Technici4n]

Does updated Mixin already include the VirtualJar? That could be the cause of the CI failure.

[shartte]

Raise another glass for module-land :D
neoforged/FancyModLoader#175