Change minimum required flask version to 2.2.5

[viniciuschiele]

• flask versions prior to 2.2.5 have a security vulnerability

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (93cec4e) 91.82% compared to head (fdaafc9) 91.82%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #233   +/-   ##
=======================================
  Coverage   91.82%   91.82%           
=======================================
  Files           6        6           
  Lines         428      428           
=======================================
  Hits          393      393           
  Misses         35       35           

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