Fixup of check.

Author: michaelnebel

.github/workflows/ci.yml

@@ -137,8 +137,8 @@ jobs:
 
       - name: Validate test results
         run: |
-          if [[ ! -f *-test-results/test_report_* ]]; then
-            # No test output to parse
+          if [[ ! -n "$(find . -name '*-test-results/test_report_*' -print -quit)" ]]; then
+            echo "No test results found"
             exit 0
           fi