Fuzz logging level

[slundqui]

• Don't pause on lp_rate failure in local fuzz runs (still log to rollbar)
• Change default logging level to ERROR instead of CRITICAL
• Change logging of rust calc_max_* errors from to WARNING instead of ERROR

There are still errors being logged as ERROR that we expect, e.g., InsufficientLiquidity or CircuitBreakerTriggered on a contract call. Need follow up PR to handle these, or log as less severe.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.11%. Comparing base (e8cd96c) to head (02b8909).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1569      +/-   ##
==========================================
- Coverage   81.32%   81.11%   -0.22%     
==========================================
  Files          98       98              
  Lines        7100     7100              
==========================================
- Hits         5774     5759      -15     
- Misses       1326     1341      +15     

Flag	Coverage Δ
unittests	81.11% <100.00%> (-0.22%)	⬇️

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