Add troubleshooting section to upgrading

[jmthomas]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.27%. Comparing base (38803d7) to head (e85b712).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3141      +/-   ##
==========================================
+ Coverage   78.23%   78.27%   +0.03%     
==========================================
  Files         673      673              
  Lines       55239    55239              
  Branches      728      728              
==========================================
+ Hits        43214    43236      +22     
+ Misses      11947    11925      -22     
  Partials       78       78              

Flag	Coverage Δ
python	79.48% <ø> (+<0.01%)	⬆️
ruby-api	83.62% <ø> (+0.48%)	⬆️
ruby-backend	81.37% <ø> (ø)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud