deps: update pyarrow requirement from ~=17.0 to ~=18.1

Updates the requirements on [pyarrow](https://github.com/apache/arrow) to permit the latest version.
- [Release notes](https://github.com/apache/arrow/releases)
- [Commits](apache/arrow@go/v17.0.0...apache-arrow-18.1.0)

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

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

requirements.txt

@@ -8,4 +8,4 @@ opencv-python~=4.10
 openpyxl~=3.1
 pandas~=2.2
 pdf2image~=1.17
-pyarrow~=17.0
+pyarrow~=18.1