ci: Add workflow to build benchmark cli

Continuation of #10410

.github/workflows/docker-images-benchmark.yml

@@ -0,0 +1,43 @@
+name: Benchmark Docker Image CI
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+    paths:
+      - 'packages/benchmark/**'
+      - 'pnpm-lock.yaml'
+      - 'pnpm-workspace.yaml'
+      - '.github/workflows/docker-images-benchmark.yml'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/[email protected]
+
+      - name: Set up QEMU
+        uses: docker/[email protected]
+
+      - name: Set up Docker Buildx
+        uses: docker/[email protected]
+
+      - name: Login to GitHub Container Registry
+        uses: docker/[email protected]
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build
+        uses: docker/[email protected]
+        with:
+          context: .
+          file: ./packages/benchmark/Dockerfile
+          platforms: linux/amd64
+          provenance: false
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/n8n-benchmark:latest