chore(deps): bump the uv group with 9 updates

Bumps the uv group with 9 updates:

| Package | From | To |
| --- | --- | --- |
| [attrs](https://github.com/python-attrs/attrs) | `25.4.0` | `26.1.0` |
| [bidsschematools](https://github.com/bids-standard/bids-specification) | `1.2.1` | `1.2.2` |
| [nibabel](https://github.com/nipy/nibabel) | `5.3.3` | `5.4.2` |
| [orjson](https://github.com/ijl/orjson) | `3.11.7` | `3.11.8` |
| [ipython](https://github.com/ipython/ipython) | `8.38.0` | `8.39.0` |
| [ruff](https://github.com/astral-sh/ruff) | `0.15.6` | `0.15.8` |
| [pytest-cov](https://github.com/pytest-dev/pytest-cov) | `7.0.0` | `7.1.0` |
| [datalad](https://github.com/datalad/datalad) | `1.3.1` | `1.3.4` |
| [mypy](https://github.com/python/mypy) | `1.19.1` | `1.20.0` |


Updates `attrs` from 25.4.0 to 26.1.0
- [Release notes](https://github.com/python-attrs/attrs/releases)
- [Changelog](https://github.com/python-attrs/attrs/blob/main/CHANGELOG.md)
- [Commits](python-attrs/attrs@25.4.0...26.1.0)

Updates `bidsschematools` from 1.2.1 to 1.2.2
- [Release notes](https://github.com/bids-standard/bids-specification/releases)
- [Changelog](https://github.com/bids-standard/bids-specification/blob/master/Release_Protocol.md)
- [Commits](bids-standard/bids-specification@v1.2.1...v1.2.2)

Updates `nibabel` from 5.3.3 to 5.4.2
- [Release notes](https://github.com/nipy/nibabel/releases)
- [Changelog](https://github.com/nipy/nibabel/blob/master/Changelog)
- [Commits](nipy/nibabel@5.3.3...5.4.2)

Updates `orjson` from 3.11.7 to 3.11.8
- [Release notes](https://github.com/ijl/orjson/releases)
- [Changelog](https://github.com/ijl/orjson/blob/master/CHANGELOG.md)
- [Commits](ijl/orjson@3.11.7...3.11.8)

Updates `ipython` from 8.38.0 to 8.39.0
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](ipython/ipython@8.38.0...8.39.0)

Updates `ruff` from 0.15.6 to 0.15.8
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.6...0.15.8)

Updates `pytest-cov` from 7.0.0 to 7.1.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v7.0.0...v7.1.0)

Updates `datalad` from 1.3.1 to 1.3.4
- [Release notes](https://github.com/datalad/datalad/releases)
- [Changelog](https://github.com/datalad/datalad/blob/maint/CHANGELOG.md)
- [Commits](datalad/datalad@1.3.1...1.3.4)

Updates `mypy` from 1.19.1 to 1.20.0
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.19.1...v1.20.0)

---
updated-dependencies:
- dependency-name: attrs
  dependency-version: 26.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: uv
- dependency-name: bidsschematools
  dependency-version: 1.2.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: uv
- dependency-name: nibabel
  dependency-version: 5.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: uv
- dependency-name: orjson
  dependency-version: 3.11.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: uv
- dependency-name: ipython
  dependency-version: 8.39.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: uv
- dependency-name: ruff
  dependency-version: 0.15.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: uv
- dependency-name: pytest-cov
  dependency-version: 7.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: uv
- dependency-name: datalad
  dependency-version: 1.3.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: uv
- dependency-name: mypy
  dependency-version: 1.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: uv
...

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Author: dependabot[bot]