fix(core): ensure_ascii=False in PydanticOutputParser exception formatting

[soapun]

• Description: When formatting an error, PydanticOutputParser dumps json with default ensure_ascii=True

• Issue: Fixes PydanticOutputParser formats error with ensure_ascii=True #34005

• Dependencies: None

• Lint and test: Run make format, make lint and make test from the root of the package(s) you've modified. We will not consider a PR unless these three are passing in CI. See contribution guidelines for more.

[codspeed-hq]

CodSpeed Performance Report

Merging #34006 will not alter performance

_{Comparing soapun:fix/pydantic-format-error-with-ensureascii (b4535f2) with master (990e346)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 13 untouched
⏩ 21 skipped¹

Footnotes

1. 21 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩