Bump dspy from 332d4c3 to d4e1931

Bumps [dspy](https://github.com/stanfordnlp/dspy) from `332d4c3` to `d4e1931`.
- [Release notes](https://github.com/stanfordnlp/dspy/releases)
- [Commits](stanfordnlp/dspy@332d4c3...d4e1931)

---
updated-dependencies:
- dependency-name: dspy
  dependency-type: direct:production
...

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