[MISC] Clean-up duplicated Patroni config reloads

[sinclert-canonical]

This PR removes unnecessary calls to reload_patroni_configuration method, in cases where the charm's update_config method is explicitly called right before such line. This method already reloads the Patroni configuration internally (reference), so it does not make sense to preserve these lines.

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This discovery was done thanks to the help of @lucasgameiroborges

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.74%. Comparing base (58fc973) to head (3111380).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #682      +/-   ##
==========================================
- Coverage   71.79%   71.74%   -0.06%     
==========================================
  Files          13       13              
  Lines        3216     3210       -6     
  Branches      478      475       -3     
==========================================
- Hits         2309     2303       -6     
  Misses        791      791              
  Partials      116      116              

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[lucasgameiroborges]

LGTM! Failing tests are known issues, no relation with your changes.

[marceloneppel]

LGTM!