Bump pyarrow from 20.0.0 to 21.0.0

Bumps [pyarrow](https://github.com/apache/arrow) from 20.0.0 to 21.0.0.
- [Release notes](https://github.com/apache/arrow/releases)
- [Commits](apache/arrow@apache-arrow-20.0.0...apache-arrow-21.0.0)

---
updated-dependencies:
- dependency-name: pyarrow
  dependency-version: 21.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/requirements_ingester.txt

@@ -19,7 +19,7 @@ numba==0.61.0
 numpy>=1.23.5, <2.0.0
 pandas==2.2.3
 protobuf==4.22.1
-pyarrow==20.0.0
+pyarrow==21.0.0
 PyJWT==2.10.1
 pymongo==4.8.0
 pyopenssl==24.3.0