Add SOPS 3.9.2 to CI

[felixfontein]

3.9.2 has just been released.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.58%. Comparing base (ef58d34) to head (dbf6381).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #213   +/-   ##
=======================================
  Coverage   83.58%   83.58%           
=======================================
  Files          12       12           
  Lines         725      725           
  Branches      142      142           
=======================================
  Hits          606      606           
  Misses         84       84           
  Partials       35       35           

Flag	Coverage Δ
integration	81.71% <ø> (ø)
sanity	29.51% <ø> (ø)

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