Changed string formatting, as ":" was leading to errors in the window… #718

	name: Tests
	on: [push, pull_request]

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: true
	max-parallel: 15
	matrix:
	# Apple Silicon runner: https://github.com/actions/runner-images/issues/9254
	# Note we disable MPS for training
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ['3.8', '3.9', '3.10', '3.11']
	defaults:
	run:
	shell: bash
	steps:
	- name: Check out repository
	uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Set environment variable for macOS
	if: runner.os == 'macOS'
	run: echo "MAC_OS_GITHUB_RUNNER=1" >> $GITHUB_ENV

	- name: Load cached venv
	id: cached-pip-wheels
	uses: actions/cache@v3
	with:
	path: ~/.cache
	key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[testing, graph, routing]"

	- name: Run pytest
	run: pytest --cov=rl4co tests/*.py

	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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