only build image for amd64 since base image of amr64 is missing

Author: gy2006

build.sh

@@ -6,4 +6,5 @@ if [[ -n ${tag} ]]; then
   versionTag="-t flowci/core:$tag"
 fi
 
-docker buildx build -f ./core/Dockerfile --platform linux/arm64,linux/amd64 --push -t flowci/core:latest $versionTag ./core
+#docker buildx build -f ./core/Dockerfile --platform linux/arm64,linux/amd64 --push -t flowci/core:latest $versionTag ./core
+docker build -f ./core/Dockerfile -t flowci/core:latest $versionTag ./core