[backend] validate date inputs format in validateInputAgainstSchema (#10881)

[JeremyCloarec]

Proposed changes

• validate date inputs format in validateInputAgainstSchema

Related issues

• Invalid date / time values can be added using a python program and pycti module #10881

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.61%. Comparing base (8bbf3e8) to head (3924fc2).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10984      +/-   ##
==========================================
+ Coverage   65.60%   65.61%   +0.01%     
==========================================
  Files         674      674              
  Lines       67138    67146       +8     
  Branches     7415     7420       +5     
==========================================
+ Hits        44046    44059      +13     
+ Misses      23092    23087       -5     

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