add async to avoit timeout

Author: Enaraque

ami/playbooks/build_ami_packages.yaml

@@ -181,6 +181,8 @@
 
     - name: Run {{ installer_script_name }} script
       command: "bash {{ installation_assistant_directory }}/{{ installer_script_name }} -a -v -o -d"
+      async: 7200
+      poll: 30
 
     ###############################
     # Post-install stage