Sanitize funciton arguments which are 'invalid' JSON

[codingjoe]

See also: https://community.openai.com/t/response-from-tools-call-function-arguments-is-not-consistently-valid-json/594040/3

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.57%. Comparing base (cb1947d) to head (c953f4f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #108 +/- ## ========================================== - Coverage 95.89% 95.57% -0.33% ========================================== Files 19 19 Lines 609 610 +1 ========================================== - Hits 584 583 -1 - Misses 25 27 +2 ```

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[sentry-io[bot]]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ SyntaxError: unterminated string literal (detected at line 4) (, line 4) ast in parse View Issue

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