Fix Immunologist doctor type Id

[Jacobjeevan]

Proposed Changes

• Fixed the typo for Immunologist doctor type Id. Associated with changes on frontend (Issue 8944).

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@ohcnetwork/care-backend-maintainers @ohcnetwork/care-backend-admins

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.03%. Comparing base (69c2b83) to head (54e8e11).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2568   +/-   ##
========================================
  Coverage    70.03%   70.03%           
========================================
  Files          198      198           
  Lines        11674    11674           
  Branches      1607     1607           
========================================
  Hits          8176     8176           
  Misses        3107     3107           
  Partials       391      391           

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