fix: update deprecated include with import_tasks

[deshannalinda]

Fixing the following error

ERROR! [DEPRECATED]: ansible.builtin.include has been removed. Use include_tasks or import_tasks instead. This feature was removed from ansible-core in a release after 2023-05-16. Please update your playbooks.

The error appears to be in '/Users/deshan/Developer/KZN/supagolf-tee-management-webapp/rpi/roles/aws_ssm_agent/tasks/main.yml': line 10, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

# Installs the AWS SSM Agent software.
- include: agent-install/main.yml
  ^ here

[deshannalinda]

I acknowledge but won't fix the DeepSource lint error as its unrelated to this PR