Various updates to actions. #2

	# Continuous integration tests.

	name: pytype

	on:
	push:
	branches:
	- main
	paths:
	- '.github/workflows/pytype.yml'
	- 'examples/**'
	- 'meltingpot/**'
	- 'pyproject.toml'
	pull_request:
	branches:
	- main
	paths:
	- '.github/workflows/pytype.yml'
	- 'examples/**'
	- 'meltingpot/**'
	- 'pyproject.toml'
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	permissions: read-all

	jobs:
	pytype:
	name: Typecheck Melting Pot
	runs-on: ubuntu-latest
	timeout-minutes: 30
	strategy:
	fail-fast: ${{ github.event_name != 'workflow_dispatch' }}
	steps:
	- name: Checkout Melting Pot
	uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
	- name: Set up Python
	uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435
	with:
	python-version: '3.10'
	- name: Install Python dependencies
	run: \|
	pip install --upgrade pip
	pip install setuptools pytype
	- name: Install Melting Pot
	run: pip -vvv install .
	- name: Run PyType on Melting Pot
	run: pytype meltingpot
	- name: Install example requirements
	run: pip -vvv install -r examples/requirements.txt
	- name: Run PyType on examples
	run: pytype examples

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