fix: fix bug in image_tag

docker/build_docker_multiple_platform.sh

@@ -2,8 +2,16 @@
 
 script_dir="$( dirname "${0}" )"
 
+IMAGE_TAG="latest"
+
+# shellcheck disable=SC2199
+if [[ "${@}" != "" ]];then
+    # shellcheck disable=SC2124
+    IMAGE_TAG="${@}"
+fi
+
 sudo docker buildx build \
   --push \
   --platform linux/arm/v7,linux/arm64/v8,linux/amd64 \
-  -t getpinry/pinry:${@} "${script_dir}/../" \
+  -t getpinry/pinry:${IMAGE_TAG} "${script_dir}/../" \
   -f "${script_dir}/../Dockerfile.autobuild"