fix: add health endpoint to openapi

[luislhl]

Motivation

We need the /health endpoint to be included in the OpenAPI definitions that generate the Nginx config

Acceptance Criteria

• The Nginx config should contain the /health endpoint when generated

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4a97f92) 85.32% compared to head (20752b6) 85.35%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #891      +/-   ##
==========================================
+ Coverage   85.32%   85.35%   +0.03%     
==========================================
  Files         283      283              
  Lines       22416    22416              
  Branches     3397     3397              
==========================================
+ Hits        19126    19134       +8     
+ Misses       2604     2600       -4     
+ Partials      686      682       -4     

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