fix(fw): Less restrictive TransactionTraces CamelModel

[pdobacz]

🗒️ Description

Follow-up to #2000 , I still have been getting errors with --traces option, when the traces involved an exception. This seems to have fixed it not sure if correct.

🔗 Related Issues or PRs

N/A.

✅ Checklist

• All: Ran fast tox checks to avoid unnecessary CI fails, see also Code Standards and Enabling Pre-commit Checks:

  uvx tox -e static

• All: PR title adheres to the repo standard - it will be used as the squash commit message and should start type(scope):.
• All: Set appropriate labels for the changes (only maintainers can apply labels).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.14%. Comparing base (c6c380a) to head (a2cf89c).
⚠️ Report is 43 commits behind head on forks/amsterdam.

Additional details and impacted files

@@               Coverage Diff                @@
##           forks/amsterdam    #2081   +/-   ##
================================================
  Coverage            86.14%   86.14%           
================================================
  Files                  599      599           
  Lines                39472    39472           
  Branches              3780     3780           
================================================
  Hits                 34002    34002           
  Misses                4848     4848           
  Partials               622      622           

Flag	Coverage Δ
unittests	86.14% <ø> (ø)

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[fselmo]

lgtm, ty!