Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pipeline.yaml

@@ -41,7 +41,7 @@ jobs:
       - name: Install testing tools
         run: sudo apt update && sudo apt install -y gocr qemu-utils qemu qemu-kvm gocr imagemagick
       - name: Download artifacts
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: images
       - name: Run test
@@ -61,7 +61,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Download artifacts
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: images
       - name: Create release