Update Ra from 2.13.5 to 2.13.6

[dumbbell]

Release notes:
https://github.com/rabbitmq/ra/releases/tag/v2.13.6

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.46%. Comparing base (a2e4af2) to head (356e2a1).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #285   +/-   ##
=======================================
  Coverage   89.46%   89.46%           
=======================================
  Files          21       21           
  Lines        3104     3104           
=======================================
  Hits         2777     2777           
  Misses        327      327           

Flag	Coverage Δ
erlang-25	88.65% <ø> (ø)
erlang-26	89.40% <ø> (+0.03%)	⬆️
erlang-27	89.36% <ø> (-0.04%)	⬇️
os-ubuntu-latest	89.46% <ø> (+0.03%)	⬆️
os-windows-latest	89.43% <ø> (-0.04%)	⬇️

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