chore(gha): bump dawidd6/action-download-artifact from 5 to 6

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 5 to 6.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: dawidd6/action-download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/post-release-update_bpmn_visualization_version_in_Examples_repo.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Delete old Demo
         run: rm -rf README.md
       - name: Download Demo ${{ env.VERSION }}
-        uses: dawidd6/action-download-artifact@v5
+        uses: dawidd6/action-download-artifact@v6
         with:
           github_token: ${{ secrets.GH_RELEASE_TOKEN }}
           repo: ${{ env.BUILD_DEMO_REPO }}

.github/workflows/surge-pr-fork-02-deploy.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: download dist artifact
-        uses: dawidd6/action-download-artifact@v5
+        uses: dawidd6/action-download-artifact@v6
         with:
           workflow: ${{ github.event.workflow_run.workflow_id }}
           name: pr-build-dist  # must be kept in sync with the artifact name downloaded in the build stage