Bump the dev-dependencies group across 1 directory with 5 updates

Bumps the dev-dependencies group with 5 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [python-multipart](https://github.com/Kludex/python-multipart) | `0.0.19` | `0.0.20` |
| [a2wsgi](https://github.com/abersheeran/a2wsgi) | `1.10.7` | `1.10.8` |
| [pygments](https://github.com/pygments/pygments) | `2.18.0` | `2.19.1` |
| [mypy](https://github.com/python/mypy) | `1.13.0` | `1.14.1` |
| [fastapi](https://github.com/fastapi/fastapi) | `0.115.6` | `0.115.7` |



Updates `python-multipart` from 0.0.19 to 0.0.20
- [Release notes](https://github.com/Kludex/python-multipart/releases)
- [Changelog](https://github.com/Kludex/python-multipart/blob/master/CHANGELOG.md)
- [Commits](Kludex/python-multipart@0.0.19...0.0.20)

Updates `a2wsgi` from 1.10.7 to 1.10.8
- [Commits](abersheeran/a2wsgi@v1.10.7...v1.10.8)

Updates `pygments` from 2.18.0 to 2.19.1
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.18.0...2.19.1)

Updates `mypy` from 1.13.0 to 1.14.1
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.13.0...v1.14.1)

Updates `fastapi` from 0.115.6 to 0.115.7
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.115.6...0.115.7)

---
updated-dependencies:
- dependency-name: python-multipart
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: a2wsgi
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: pygments
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: mypy
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: fastapi
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

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