misc: Correct release filename

Author: SludgeGirl

.github/workflows/release.yml

@@ -35,4 +35,4 @@ jobs:
       - name: Publish GitHub release
         uses: cockpit-project/action-release@7d2e2657382e8d34f88a24b5987f2b81ea165785
         with:
-          filename: "cockpit-repos-${{ github.ref_name }}.tar.xz"
+          filename: "cockpit-subscriptions-${{ github.ref_name }}.tar.xz"