Reenable pekko in AITs workflow

Author: nr-kateanderson

.github/workflows/Test-AITs.yml

@@ -71,8 +71,6 @@ jobs:
           echo "server/weblogic.py" >> $excluded_tests
           echo "basic_features/inf_tracing_test.py" >> $excluded_tests
           echo "security/lasp_msg_params.py" >> $excluded_tests
-          echo "framework/pekko/pekko.py" >> $excluded_tests
-          echo "framework/pekko/pekkohttp.py" >> $excluded_tests
           # The files below are not tests
           echo "trace/client.py" >> $excluded_tests
           echo "trace/server.py" >> $excluded_tests