Test 3, more simple solution via existing yaml

Author: OlafFilies

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

@@ -123,8 +123,8 @@ jobs:
         run: |
           cd /opt/runner_support/
 
-          echo ${{ env.serials }}
-          echo ${{ fromJson(env.serials) }}
+          test=echo ${{ fromJson(env.serials) }}
+          echo ${test}
           for serial in "${{ fromJson(env.serials) }}"; do
             echo "Serial: $serial"
           done