Update actions/checkout action to v4 #1659

	name: "Validate API behaviour"

	on:
	pull_request:
	push:

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/[email protected]

	- name: Cache Docker layers
	uses: actions/[email protected]
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-

	-
	name: Build and push
	uses: docker/[email protected]
	with:
	context: .
	load: true
	tags: chimera-sample
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache-new
	-
	# Temp fix
	# https://github.com/docker/build-push-action/issues/252
	# https://github.com/moby/buildkit/issues/1896
	name: Move cache
	run: \|
	rm -rf /tmp/.buildx-cache
	mv /tmp/.buildx-cache-new /tmp/.buildx-cache

	-
	name: Run tests
	run: docker-compose up -d app && docker-compose run --rm tests

	-
	name: Clean up
	run: docker-compose down

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