retry healthcheck with all available configs

[elfkuzco]

Changes

• fetch all available configs before healthcheck. On startup, this is the list of all configs. For each test, it is the list of configs for the selected country.
• add helper functions to perform healthcheck using list of configs till success
• remove healthchecks from run method

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.83%. Comparing base (512c059) to head (950f9b4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #33   +/-   ##
=======================================
  Coverage   72.83%   72.83%           
=======================================
  Files          28       28           
  Lines         795      795           
  Branches       70       70           
=======================================
  Hits          579      579           
  Misses        204      204           
  Partials       12       12           

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[rgaudin]

LGTM

[rgaudin]

Oh crap didn't account for that ; let me fix it