ci: fix docker image building on arm

Author: aceforeverd

.github/workflows/hybridsql-docker.yml

@@ -93,6 +93,6 @@ jobs:
         with:
           context: docker
           push: ${{ github.event_name == 'push' }}
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

docker/patch_yum_repo.sh

@@ -6,6 +6,6 @@ sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo
 sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo
 sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo
 
-if [[ "$ARCH" = "aarch64" ]]; then
+if [[ "$(arch)" = "aarch64" ]]; then
     sed -i s/vault.centos.org\\/centos/vault.centos.org\\/altarch/g /etc/yum.repos.d/*.repo
 fi