Add ament_mypy test and fix all mypy errors #1123

	name: CI

	on: [push, pull_request, workflow_dispatch]

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v5
	with:
	python-version: '3.10'

	- uses: pre-commit/[email protected]

	test:
	strategy:
	fail-fast: false
	matrix:
	include:
	# Test supported ROS 2 distributions
	# https://docs.ros.org/en/rolling/Releases.html
	# NOTE: Humble does not work on the `ros2` branch, so it is tested in its own branch.
	- ros: iron
	os: ubuntu-22.04
	- ros: jazzy
	os: ubuntu-24.04
	- ros: rolling
	os: ubuntu-24.04

	name: ROS 2 ${{ matrix.ros }} (${{ matrix.os }})
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v4
	with:
	path: ros_ws/src

	- uses: ros-tooling/[email protected]

	- uses: ros-tooling/[email protected]
	with:
	target-ros2-distro: ${{ matrix.ros }}

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