Update check.yml

Signed-off-by: qiaofeng1227 <76487013@qq.com>

.github/workflows/check.yml

@@ -65,6 +65,7 @@ jobs:
             # Check if the pull rate is less than 1 MB/s
             if (( $(echo "$pull_rate < 1" | bc -l) )); then
               echo "Pull rate is less than 1 MB/s, marking as failure"
+              exit 1
             else
               echo "Successfully pulled from $url"
             fi