update ci for loongarch test

Signed-off-by: yzewei <yangzewei@loongson.cn>

.github/workflows/ci.yml

@@ -121,7 +121,7 @@ jobs:
           docker run --rm ppc64le/alpine uname -a
           docker run --rm s390x/alpine uname -a
           docker run --rm tonistiigi/debian:riscv uname -a
-          docker run --rm cr.loongnix.cn/library/alpine:3.11 uname -a
+          docker run --rm yangzewei2023/debian:loongarch64 uname -a
           docker run --rm --platform=linux/s390x s390x/ubuntu apt update
           docker run --rm --platform=linux/ppc64le ppc64le/ubuntu apt update
           docker run --rm --platform=linux/arm64 arm64v8/ubuntu apt update