change name of backend CI stuff

.github/workflows/ci-build.yml

@@ -45,7 +45,7 @@ jobs:
         run: pnpm install --frozen-lockfile --ignore-scripts
       - name: Build frontend app
         run: pnpm --filter @oasisprotocol/dapp-voting-frontend build
-      - name: Build backend app
+      - name: Run tests for backend app
         run: pnpm --filter @oasisprotocol/dapp-voting-backend test
       - name: Upload frontend build artifacts
         # Upload build artifacts on push event.