Update Ra from 3.1.0 to 3.1.2

[dumbbell]

Release notes:

• https://github.com/rabbitmq/ra/releases/tag/v3.1.1
• https://github.com/rabbitmq/ra/releases/tag/v3.1.2

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.03%. Comparing base (c3ef9a2) to head (b4f3111).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #382      +/-   ##
==========================================
- Coverage   90.11%   90.03%   -0.09%     
==========================================
  Files          22       22              
  Lines        3612     3612              
==========================================
- Hits         3255     3252       -3     
- Misses        357      360       +3     

Flag	Coverage Δ
erlang-26	89.83% <ø> (ø)
erlang-27	90.00% <ø> (-0.09%)	⬇️
erlang-28	90.00% <ø> (+0.16%)	⬆️
os-ubuntu-latest	89.86% <ø> (-0.09%)	⬇️
os-windows-latest	90.03% <ø> (ø)

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