Update test-lang-py-ARM.yml

.github/workflows/test-lang-py-ARM.yml

diff --git a/.github/workflows/test-lang-py-ARM.yml b/.github/workflows/test-lang-py-ARM.yml
index e1b579c..f5a71c4 100644
--- a/.github/workflows/test-lang-py-ARM.yml
+++ b/.github/workflows/test-lang-py-ARM.yml
@@ -43,6 +43,7 @@
 
       - name: Install dependencies
         run: |
+          set -xe
           sudo apt-get update -q
           sudo apt-get install -y software-properties-common
           sudo add-apt-repository -y ppa:deadsnakes/ppa