[CI] Test backend branches

[christiangnrd]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.27%. Comparing base (b1d4a5e) to head (c6a5b37).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #656   +/-   ##
=======================================
  Coverage   52.27%   52.27%           
=======================================
  Files          22       22           
  Lines        1689     1689           
=======================================
  Hits          883      883           
  Misses        806      806           

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