Add a note regarding the v4 upload artifact usage #4

	name: Test Workflow with our Action and and Upload Artifact v4 (does not work)

	on:
	workflow_dispatch:
	pull_request:
	push:
	jobs:
	run-action:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Store Workflow
	uses: actions/upload-artifact@v4
	with:
	name: "test-workflow"
	path: ".github/workflows/test-workflow-with-action-upload-v4.yaml"
	retention-days: 3
	- uses: "./"
	name: "Check artifact exists"
	id: "check_workflow_exists"
	with:
	name: "test-workflow"
	- uses: "./"
	name: "Check artifact does not exist"
	id: "check_non_existing"
	with:
	name: "non-existing-artifact"
	- name: "Echo if artifact exists"
	run: echo "::notice::Artifact in-deed exists."
	if: "${{ steps.check_workflow_exists.outputs.exists == 'true' }}"
	- name: "Echo if artifact does not exist"
	run: echo "::notice::Artifact in-deed does not exist."
	if: "${{ steps.check_non_existing.outputs.exists == 'false' }}"

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