ci: extract ds for lab deployments

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

.github/workflows/deploy.yml

@@ -65,6 +65,20 @@ jobs:
             docker-bake.hcl
           targets: release
           provenance: false
+      -
+        name: Login to Docker Hub
+        if: ${{ env.DOCS_S3_BUCKET != '' && github.ref == 'refs/heads/lab' }}
+        uses: docker/login-action@v4
+        with:
+          username: ${{ vars.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+      -
+        name: Copy dash sub-site
+        if: ${{ env.DOCS_S3_BUCKET != '' && github.ref == 'refs/heads/lab' }}
+        run: |
+          docker buildx build --output type=local,dest=public - <<'EOF'
+          FROM docs/dash:dist-latest
+          EOF
       -
         name: Configure AWS Credentials
         if: ${{ env.DOCS_AWS_IAM_ROLE != '' }}