Update GitHub Artifact Actions

Author: renovate[bot]

.github/workflows/release.yml

@@ -37,7 +37,7 @@ jobs:
           mkdir release
           mv *.deb release
       - name: upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: release
           path: release
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download release files
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: release
       - uses: golift/upload-packagecloud@v1.1