feat(deps): bump the runtime-dependencies group across 1 directory with 4 updates (#454)

Bumps the runtime-dependencies group with 4 updates in the / directory: [structlog](https://github.com/hynek/structlog), [pyyaml](https://github.com/yaml/pyyaml), [pydantic](https://github.com/pydantic/pydantic) and [furo](https://github.com/pradyunsg/furo).


Updates `structlog` from 25.4.0 to 25.5.0
- [Release notes](https://github.com/hynek/structlog/releases)
- [Changelog](https://github.com/hynek/structlog/blob/main/CHANGELOG.md)
- [Commits](hynek/structlog@25.4.0...25.5.0)

Updates `pyyaml` from 6.0.2 to 6.0.3
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/6.0.3/CHANGES)
- [Commits](yaml/pyyaml@6.0.2...6.0.3)

Updates `pydantic` from 2.11.7 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@v2.11.7...v2.12.3)

Updates `furo` from 2025.7.19 to 2025.9.25
- [Release notes](https://github.com/pradyunsg/furo/releases)
- [Changelog](https://github.com/pradyunsg/furo/blob/main/docs/changelog.md)
- [Commits](pradyunsg/furo@2025.07.19...2025.09.25)

---
updated-dependencies:
- dependency-name: structlog
  dependency-version: 25.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: runtime-dependencies
- dependency-name: pyyaml
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: runtime-dependencies
- dependency-name: pydantic
  dependency-version: 2.12.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: runtime-dependencies
- dependency-name: furo
  dependency-version: 2025.9.25
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: runtime-dependencies
...

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Author: dependabot[bot]