deps(uv): bump pyarrow from 25.0.1 to 26.0.0

[dependabot]

Bumps pyarrow from 25.0.1 to 26.0.0.

Release notes

Sourced from pyarrow's releases.

Apache Arrow 26.0.0

Release Notes URL: https://arrow.apache.org/release/26.0.0.html

Apache Arrow 26.0.0 RC0

Release Notes: Release Candidate: 26.0.0 RC0

Commits

• 4461671 MINOR: [Release] Update versions for 26.0.0
• 9d03a26 MINOR: [Release] Update .deb/.rpm changelogs for 26.0.0
• 5ce3c95 MINOR: [Release] Update CHANGELOG.md for 26.0.0
• 28e6c67 GH-51687: [C++] Skipt tests that require threads if ARROW_ENABLE_THREADING=OF...
• 12409f8 GH-51682: [CI][C++] Add liburiparser-dev to system dependency image (#51683)
• 1deceed GH-51675: [Python][Packaging] Apply upstream fix to UriParser from vcpkg and ...
• cca44b5 GH-51638: [CI][C++][Parquet] Update expected JSON output in parquet-reader-te...
• 5183e21 GH-46901: [C++][Compute] Add remainder and modulo kernels (#48914)
• f0d043c MINOR: [Docs][C++] Fix doxygenfile path for arrow/flight/transport.h (#51677)
• 17be9c7 GH-51652: [Python] Add NumPy StringDType to Arrow conversion (#51157)
• Additional commits viewable in compare view

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[github-actions]

requirements.txt / pylock.toml drift (unsigned push blocked)

uv.lock / pyproject.toml changed but GitHub Actions cannot push an unsigned commit under the required_signatures ruleset (#1419).

Option A — signed commit on this Dependabot branch:

git fetch origin pull/2084/head:dependabot-review
git checkout dependabot-review
uv export --frozen --no-emit-project -o requirements.txt
uv export --format pylock.toml --frozen --all-extras --all-groups --output-file pylock.toml
git add requirements.txt pylock.toml
git commit -S -m "chore(deps): regenerate requirements.txt and pylock.toml after uv.lock update"
git push origin "HEAD:<dependabot-branch-name>"

Option B — supersede PR: apply the bump + export locally with signed commits (see CONTRIBUTING.md).

Download the CI-generated requirements.txt and pylock.toml from the workflow artifact on this run when present.