fix(ansible): broaden superuser creation error check

[histrio]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.63%. Comparing base (b4e33a3) to head (5b3f0a7).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #6   +/-   ##
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  Coverage   83.63%   83.63%           
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  Files           3        3           
  Lines          55       55           
=======================================
  Hits           46       46           
  Misses          9        9           

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[Copilot]

Pull request overview

This PR enhances the robustness of the Django superuser creation task in the Ansible deployment playbook by handling multiple error message formats that Django may return when a superuser already exists.

Key Changes:

• Extended the failed_when condition to check for both 'already exists' and 'already taken' error messages from Django's createsuperuser command

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