ci: add a workflow to build images

.github/workflows/build-image.yaml

@@ -0,0 +1,38 @@
+name: Deploy Images to GHCR
+
+on:
+  release:
+    types:
+      - released
+  workflow_dispatch:
+
+permissions:
+  packages: write
+  contents: read
+
+jobs:
+  build-docker-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout repo'
+        uses: actions/checkout@main
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: 'Login to GitHub Container Registry'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: ghcr.io/${{ github.repository }}:${{ github.ref_name }}