chore(deps): bump the all-dependencies group across 1 directory with 3 updates

Bumps the all-dependencies group with 3 updates in the / directory: [python-dotenv](https://github.com/theskumar/python-dotenv), [sentence-transformers](https://github.com/huggingface/sentence-transformers) and [pydantic](https://github.com/pydantic/pydantic).


Updates `python-dotenv` from 1.1.1 to 1.2.1
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.1.1...v1.2.1)

Updates `sentence-transformers` from 5.1.1 to 5.1.2
- [Release notes](https://github.com/huggingface/sentence-transformers/releases)
- [Commits](huggingface/sentence-transformers@v5.1.1...v5.1.2)

Updates `pydantic` from 2.12.0 to 2.12.3
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.12.0...v2.12.3)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-dependencies
- dependency-name: sentence-transformers
  dependency-version: 5.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-dependencies
- dependency-name: pydantic
  dependency-version: 2.12.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-dependencies
...

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Author: dependabot[bot]