Update bin/test-changed-exercise

Co-authored-by: Kah Goh <[email protected]>

Author: jagdish-15

bin/test-changed-exercise

@@ -66,7 +66,7 @@ for dir in $changed_exercises; do
 
     # Create summary.txt with header only on first failure
     if [ ! -f "$summary_file" ]; then
-        echo "The following exercises did NOT pass:" > "$summary_file"
+        echo "The following exercises have test failures or test errors:" > "$summary_file"
     fi
 
     # Append the correct path (practice/slug or concept/slug)