Fix CX warning in OS update context

[abonnaudet-ledger]

Description

Remove const qualifier for a CX field - in the context of an OS upgrade app.

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e54fb1b) 69.09% compared to head (70d652b) 69.09%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #461   +/-   ##
=======================================
  Coverage   69.09%   69.09%           
=======================================
  Files          11       11           
  Lines         877      877           
=======================================
  Hits          606      606           
  Misses        271      271           

Flag	Coverage Δ
unittests	69.09% <ø> (ø)

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