chore: improve error handling for test_results directory in ci.yml

Author: tsviz

.github/workflows/ci.yml

@@ -213,20 +213,14 @@ jobs:
       - name: Ensure junit-path exists and that all xml files are readable in path 'test_results/**/*xml' with this syntax
         run: |
           if [ ! -d "test_results" ]; then
-            echo "test_results directory does not exist"
-            exit 1
-          fi
-          if ! ls test_results/*xml 1> /dev/null 2>&1; then
-            echo "No xml files found in test_results directory"
-            exit 1
-          fi
-          if ! ls -l test_results/*xml 1> /dev/null 2>&1; then
-            echo "Not all xml files in test_results directory are readable"
-            exit 1
-          fi
-
-          echo "All xml files in test_results directory are readable"
-          ls -l test_results/*xml
+            echo "Warning: test_results directory does not exist"
+          elif ! ls test_results/*xml 1> /dev/null 2>&1; then
+            echo "Warning: No xml files found in test_results directory"
+          elif ! ls -l test_results/*xml 1> /dev/null 2>&1; then
+            echo "Warning: Not all xml files in test_results directory are readable"
+          else
+            echo "All xml files in test_results directory are readable"
+            ls -l test_results/*xml
 
       - name: Setup tmate session
         uses: mxschmitt/action-tmate@v3.19