Made UnityGroup class more generic #190

	name: Lint

	on:
	# Trigger the workflow on push or pull request,
	# but only for the main branch
	push:
	branches:
	- 'main'
	# Replace pull_request with pull_request_target if you
	# plan to use this action with forks, see the Limitations section
	pull_request_target:
	branches:
	- 'main'

	# Down scope as necessary via https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
	permissions:
	checks: write
	contents: write

	jobs:
	run-linters:
	name: Run linters
	runs-on: ubuntu-latest

	steps:
	- name: Check out Git repository
	uses: actions/checkout@v2

	- name: Set up PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: "7.4"
	coverage: none
	tools: phpcs

	- name: Run linters
	uses: wearerequired/lint-action@v2
	with:
	php_codesniffer: true
	php_codesniffer_args: "--standard=psr12"

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