fix: LEAP-1713: Enhance CSRF Token Security

[triklozoid]

• read from env csrf cookie age

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.94%. Comparing base (1e767ef) to head (63bf26e).
Report is 15 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #6905   +/-   ##
========================================
  Coverage    76.94%   76.94%           
========================================
  Files          175      175           
  Lines        14139    14140    +1     
========================================
+ Hits         10879    10880    +1     
  Misses        3260     3260           

Flag	Coverage Δ
pytests	76.94% <100.00%> (+<0.01%)	⬆️

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