Simplify directives in diff system plugin #22

	name: CI

	on:
	workflow_dispatch:
	push:
	branches:
	- humble
	pull_request:
	branches:
	- humble

	jobs:
	fortress_ci:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	ROS_REPO: [testing, main]
	steps:
	- name: Setup ROS environment
	uses: ros-tooling/setup-ros@v0.7
	with:
	use-ros2-testing: ${{ matrix.ROS_REPO == 'testing' }}
	- name: Run ROS CI
	uses: ros-tooling/action-ros-ci@v0.3
	with:
	target-ros2-distro: humble
	import-token: ${{ secrets.GITHUB_TOKEN }}

	garden_ci:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	ROS_REPO: [testing, main]
	env:
	GZ_VERSION: garden
	steps:
	- name: Setup ROS environment
	uses: ros-tooling/setup-ros@v0.7
	with:
	use-ros2-testing: ${{ matrix.ROS_REPO == 'testing' }}
	- name: Install Gazebo
	run: \|
	sudo sh -c 'echo "deb http://packages.osrfoundation.org/gazebo/ubuntu-stable `lsb_release -cs` main" > /etc/apt/sources.list.d/gazebo-stable.list'
	wget https://packages.osrfoundation.org/gazebo.key -O - \| sudo apt-key add -
	sudo apt-get update
	sudo apt-get install -y libgz-sim7-dev
	- name: Run ROS CI
	uses: ros-tooling/action-ros-ci@v0.3
	with:
	target-ros2-distro: humble
	import-token: ${{ secrets.GITHUB_TOKEN }}

	black_check:
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout repo
	uses: actions/checkout@v3
	- name: Check formatting
	uses: psf/black@stable
	with:
	version: "~= 23.0"

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