ci: speed up lava release ci

.github/workflows/build-lava.yml

@@ -6,7 +6,7 @@ on:
       - '*.*.*-lava-*'
 
 jobs:
-  build:
+  build-local:
     runs-on: ubuntu-latest
     steps:
       - name: Set up QEMU
@@ -43,6 +43,29 @@ jobs:
             ghcr.io/datepollsystems/waiterrobot-web:${{ steps.version.outputs.version }}_local
             ghcr.io/datepollsystems/waiterrobot-web:latest-lava_local
 
+  build-lava:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - 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.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract version
+        id: version
+        # 3.4.0-lava-12345 -> 3.4.0-lava
+        run: |
+          VERSION=${{ github.ref_name }}
+          echo "version=${VERSION%-*}" >> "$GITHUB_OUTPUT"
+
       - name: Build and push Docker lava-lava image
         uses: docker/build-push-action@v5
         with: