chore(deps): update github artifact actions (#540)

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

.github/workflows/docker-publish.yml

@@ -96,7 +96,7 @@ jobs:
           touch "/tmp/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: digests-${{ env.PLATFORM_PAIR }}
           path: /tmp/digests/*
@@ -118,7 +118,7 @@ jobs:
       - build
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           path: /tmp/digests
           pattern: digests-*