fix(dossier): projected champs should have updated_at

[tchak]

fix https://demarches-simplifiees.sentry.io/issues/5930339977/?project=1429550&query=is%3Aunresolved%20%21has%3Adelayed_job.id%20%21transaction%3ASidekiq%2A&referrer=issue-stream&sort=trends&statsPeriod=14d&stream_index=5

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.68%. Comparing base (5cbdfd8) to head (274e43c).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10894   +/-   ##
=======================================
  Coverage   84.68%   84.68%           
=======================================
  Files        1130     1130           
  Lines       25060    25060           
  Branches     4704     4704           
=======================================
  Hits        21221    21221           
  Misses       3839     3839           

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