Description of problem:
Ansible callback doesn't run because the file is not executable

Version-Release number of selected component (if applicable):
Satellite 6.8

How reproducible:
Create a virtual machine via image based

Steps to Reproduce:
1. Create a new virtual machine
2. Select the Image Based
3. Check the file created '/root/ansible_provisioning_call.sh' with permission 0644 (should be 755)

Actual results:
The file created has permission 644 and the tower callback will not start (doesn't run).

Expected results:
The file '/root/ansible_provisioning_call.sh' should be executable and tower callback works.