Test 3, more simple solution via existing yaml

Author: OlafFilies

.github/workflows/hil-library-test.yml

@@ -124,9 +124,9 @@ jobs:
           cd /opt/runner_support/
 
           echo ${{ env.serials }}
-          # for serial in "${env.serials[@]}"; do
-          #   echo "Serial: $serial"
-          # done
+          for serial in "${{env.serials}}[@]"; do
+            echo "Serial: $serial"
+          done
 
           echo "BUILD"