added launch files #2

	name: CI

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- name: Set up ROS 2
	run: \|
	sudo apt-get update -q
	sudo apt-get install -y curl gnupg2 lsb-release
	curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc \| sudo apt-key add -
	sudo sh -c 'echo "deb http://packages.ros.org/ros2/ubuntu $(lsb_release -cs) main" > /etc/apt/sources.list.d/ros2-latest.list'
	sudo apt-get update -q
	sudo apt-get install -y ros-humble-desktop

	- name: Setup ROS 2 dependencies
	run: \|
	sudo apt-get update -q
	sudo apt-get install -y python3-colcon-common-extensions
	sudo apt-get install -y ros-humble-rclpy ros-humble-sensor-msgs ros-humble-geometry-msgs

	- name: Source ROS 2 environment
	shell: bash
	run: \|
	source /opt/ros/humble/setup.bash
	# source /ast_ws/install/setup.bash

	- name: Install Python dependencies
	run: \|
	python3 -m pip install --upgrade pip
	pip3 install py_trees py_trees_ros

	- name: Run tests
	shell: bash
	run: \|
	source /opt/ros/humble/setup.bash
	ros2 launch my_pkg robot_safety_behaviour_tree.py

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