fix: DIA-1660: Adala errors are not reported as ConstrainedGenerationError when they should be

[matt-bernstein]

Instructor upstream error handling has changed

• ValidationErrors don't contain the string we were checking with multiskill
• instructor bug leads to them sometimes being reported as AttributeError

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.49%. Comparing base (95fa429) to head (2512959).
Report is 7 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #259      +/-   ##
==========================================
+ Coverage   66.36%   66.49%   +0.12%     
==========================================
  Files          47       47              
  Lines        2447     2462      +15     
==========================================
+ Hits         1624     1637      +13     
- Misses        823      825       +2     

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