Environment details (Operating System, Cloud provider, etc):
Amazon Linux 2023 - AWS - Ansible v2.18.8

Describe what happened:
When utilzing the datadog.dd.agent role from the 6.1.1 version of the dd collection, we are getting a warning from Ansible for the use of the reserved keyword tags.

[WARNING]: Found variable using reserved name: tags

This is because we are passing tags as a nested key inside datadog_config.

Describe what you expected:
The tags key will need to be renamed to something else that doesnt cause the warning of a reserved variable.

Steps to reproduce the issue:
Pass tags with key values in the datadog_config