The variable deleteResource is not set correctly for scheduled work…

…flow (#6)

* Update setupOpenLibertyAks.yml

* Update setupOpenLibertyAks.yml

.github/workflows/setupOpenLibertyAks.yml

@@ -47,7 +47,7 @@ jobs:
         id: setup-env-variables
         run: |
           deleteResource=${{ github.event.inputs.deleteResource }}
-          if [ ${{ github.event.inputs.deleteResource }} == '' ]; then
+          if [ -z ${deleteResource} ]; then
             deleteResource='true'
           fi
           echo "deleteResource: ${deleteResource}"
@@ -534,4 +534,4 @@ jobs:
             "@type":"MessageCard",
             "text":"Workflow failed in cargotracker-liberty-aks repository, please take a look at: https://github.com/${GITHUB_REPOSITORY}/actions/runs/${{ github.run_id }}"
             }
-          EOF
+          EOF