[FEATURE] Add support for TYPO3 13.4 LTS #84

	name: CGL
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	cgl:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	# Prepare environment
	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	# @todo Use PHP 8.4 once PHP-CS-Fixer supports PHP 8.4
	php-version: 8.3
	tools: composer:v2, composer-require-checker, composer-unused
	coverage: none

	# Validation
	- name: Validate composer.json
	run: composer validate

	# Install dependencies
	- name: Install Composer dependencies
	uses: ramsey/composer-install@v3
	with:
	composer-options: --no-plugins

	# Check Composer dependencies
	- name: Check dependencies
	# @todo Remove config file once support for TYPO3 v11 and v12 is dropped
	run: composer-require-checker check --config-file dependency-checker.json
	- name: Re-install Composer dependencies
	uses: ramsey/composer-install@v3
	- name: Check for unused dependencies
	run: composer-unused

	# Linting
	- name: Lint composer.json
	run: composer lint:composer
	- name: Lint Editorconfig
	run: composer lint:editorconfig
	- name: Lint PHP
	run: composer lint:php

	# SCA
	- name: SCA PHP
	run: composer sca:php -- --error-format github

	# Migration
	- name: Run Rector migration
	run: composer migration:rector -- --dry-run

Provide feedback