fix- fixed missing req body for user login in swagger doc

[soleil00]

What does this PR do?
THis PR fix missing req.body in swagger doc in user login roue

Description of Task to be completed?
-fixed missing req.body

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.45%. Comparing base (3361d25) to head (3f45d44).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev      #32      +/-   ##
==========================================
- Coverage   83.51%   83.45%   -0.06%     
==========================================
  Files          23       23              
  Lines         279      278       -1     
  Branches       33       35       +2     
==========================================
- Hits          233      232       -1     
+ Misses         46       45       -1     
- Partials        0        1       +1     

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