chore(deps): update actions/upload-artifact digest to b4b15b8

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build_container.yaml

@@ -96,7 +96,7 @@ jobs:
           outputs: type=docker,dest=/tmp/${{ env.IMAGE_NAME }}-image.tar
 
       - name: Upload image as artifact
-        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
         with:
           name: ${{ env.IMAGE_NAME }}-image.tar
           path: /tmp/${{ env.IMAGE_NAME }}-image.tar