Update docker build action to fix caching issue

[FreezyLemon]

There's a note about a "temp fix" in the GHA workflow file:

Av1an/.github/workflows/tests.yml

Lines 262 to 279 in 6d2325d

	- name: Build
	id: docker_build
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./Dockerfile
	push: false
	tags: av1an:action
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max
	- name: Move cache
	# Temp fix
	# https://github.com/docker/build-push-action/issues/252
	# https://github.com/moby/buildkit/issues/1896
	run: |
	rm -rf /tmp/.buildx-cache
	mv /tmp/.buildx-cache-new /tmp/.buildx-cache

The linked issue hasn't really seen any action since 2021, maybe 2020, but there are some alternative solutions listed. I think one of the solutions in the issue can be used instead, but I'm not familiar enough with Docker to say for sure.