fix: Valid artifact names

.forgejo/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Archive production artifacts
         uses: actions/upload-artifact@v3
         with:
-          name: build/client
+          name: build-client
           path: build/client
   package:
     name: Package
@@ -36,7 +36,7 @@ jobs:
       - name: Download build artifacts
         uses: actions/download-artifact@v3
         with:
-          name: build/client
+          name: build-client
           path: build/client
       - name: Build and push docker image
         uses: docker/build-push-action@v5