Update merge-and-generate-problems.yml

Author: eric-hjh

.github/workflows/merge-and-generate-problems.yml

@@ -63,7 +63,7 @@ jobs:
         id: determine-folder
         if: env.pr_found == 'true'
         run: |
-          LATEST_TEST=$(find live* -type d -name 'test[0-9]*' 2>/dev/null | sort -V | tail -n 1 | grep -o '[0-9]*$' || echo "0")
+          LATEST_TEST=$(find live*/test[0-9]* -type d 2>/dev/null | sort -V | tail -n 1 | grep -o '[0-9]*$' || echo "0")
 
           NEXT_TEST=$((LATEST_TEST + 1))