fix workflow: update actions/upload-artifact@v3 to v4 #209

	name: Check collision layers and masks

	on:
	pull_request:
	paths-ignore: # do not build for game-irrelevant changes
	- 'LICENSE'
	- 'ACKNOWLEDGEMENTS'
	- '**.md'
	jobs:
	check_collision_layers_and_masks:
	runs-on: ubuntu-latest
	container:
	image: barichello/godot-ci:3.4
	steps:
	- name: Checkout latest code
	uses: actions/checkout@v2

	- name: Run checks on collision_layer and collision_mask
	run: \|
	mkdir layers-and-masks
	godot --script "scripts/tools/check_collision_layers_and_masks.gd" --quit \| grep -i "collision" >> layers-and-masks/all
	WARNINGS=$(wc -l layers-and-masks/all \| awk '{print $1}')
	echo "WARNINGS=$WARNINGS" >> $GITHUB_ENV
	echo

	- name: Determine if PR files have raised warnings
	if: ${{ env.WARNINGS != 0 }}
	id: changed-files
	uses: jitterbit/get-changed-files@v1
	- run: \|
	for changed_file in ${{ steps.files.outputs.all }}; do
	grep -F "$changed_file" layers-and-masks/all >> layers-and-masks/report \|\| true
	done

	- name: Save PR metadata
	env:
	PR_NUMBER: ${{ github.event.number }}
	run: \|
	echo $PR_NUMBER > ./layers-and-masks/pr_number

	- uses: actions/upload-artifact@v4
	with:
	name: layers-and-masks
	path: layers-and-masks

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