fix: change Docker build command from --push to --load

- Updated the Docker build command in build-docker.sh to use --load instead of --push, allowing for local image loading without pushing to a registry.

infra/build-docker.sh

@@ -23,7 +23,7 @@ docker buildx build \
     --no-cache \
     -t kyantech/palmr:latest \
     -t kyantech/palmr:$TAG \
-    --push \
+    --load \
     .
 
 if [ $? -eq 0 ]; then