setting output vars

Author: darpanLalwani

setup-rerun-vars/action.yml

@@ -40,10 +40,12 @@ runs:
           echo "Triggering Actor: $triggering_actor"
           if [[ "$triggering_actor" == "gha-bstack-rerun[bot]" ]]; then
             echo "The run was triggered by the GitHub App."
-            tests_to_run="rerun_tests"
+            echo "::set-output name=tests_to_run::rerun_tests"
           else
             echo "The run was triggered by: ${{ github.actor }}"
+            echo "::set-output name=tests_to_run::all_tests"
           fi
         else
           echo "This is the first run."
+          echo "::set-output name=tests_to_run::all_tests"
         fi