Changing the nms_cred_path breaks NMS

[nginx-danieloc]

Describe the bug

The nms_cred_path cannot be changed. If it is then NGINX in front of NMS cannot find the password file.

To reproduce

Steps to reproduce the behavior:

1. Create a playbook like the following

- hosts: nms
  become: yes
  vars:
    nginx_license:
      certificate: ./nginx-repo.crt
      key: ./nginx-repo.key
    nms_setup: install
    nms_cred_path: /etc/.htpasswd
  collections:
    - nginxinc.nginx_core
  roles:
    - ansible-role-nginx-management-suite

2. Deploy the Ansible NGINX Management Suite role using playbook.yml

Expected behavior

NMS works after setting variables

Your environment

• Version of the Ansible NGINX Management Suite role or specific commit - 0.3.0
• Version of Ansible - 2.12

Additional context

Add any other context about the problem here.