fix: type check for ticket doctype with int | str

[RitvikSardana]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 50.80%. Comparing base (60584fc) to head (edc3d29).
⚠️ Report is 9 commits behind head on develop.

Files with missing lines	Patch %	Lines
helpdesk/api/saved_replies.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3024      +/-   ##
===========================================
+ Coverage    50.78%   50.80%   +0.01%     
===========================================
  Files          122      122              
  Lines         5368     5372       +4     
===========================================
+ Hits          2726     2729       +3     
- Misses        2642     2643       +1     

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