chore(deps): bump pyarrow from 20.0.0 to 23.0.1 in /bigquery/bqml

Bumps [pyarrow](https://github.com/apache/arrow) from 20.0.0 to 23.0.1.
- [Release notes](https://github.com/apache/arrow/releases)
- [Commits](apache/arrow@apache-arrow-20.0.0...apache-arrow-23.0.1)

---
updated-dependencies:
- dependency-name: pyarrow
  dependency-version: 23.0.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

bigquery/bqml/requirements.txt

@@ -3,6 +3,6 @@ google-cloud-bigquery-storage==2.27.0
 pandas==2.0.3; python_version == '3.8'
 pandas==2.2.3; python_version > '3.8'
 pyarrow==17.0.0; python_version <= '3.8'
-pyarrow==20.0.0; python_version > '3.9'
+pyarrow==23.0.1; python_version > '3.9'
 flaky==3.8.1
 mock==5.1.0