Update pyarrow requirement from <21.0.0,>=20.0.0 to >=20.0.0,<22.0.0

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@apache-arrow-20.0.0...apache-arrow-21.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -29,7 +29,7 @@ dependencies = [
   "typing-extensions >= 4.12.2, < 5",
   "numpy >= 2.3.1, < 3",
   "pandas >= 2.3.1, < 3",
-  "pyarrow >= 20.0.0, < 21.0.0",
+  "pyarrow >= 20.0.0, < 22.0.0",
   "matplotlib >= 3.8.4, < 3.11.0",
   "ipython == 9.3.0",
   "pvlib >= 0.13.0, < 0.14.0",