Bump xarray from 2023.10.1 to 2023.11.0

Bumps [xarray](https://github.com/pydata/xarray) from 2023.10.1 to 2023.11.0.
- [Release notes](https://github.com/pydata/xarray/releases)
- [Changelog](https://github.com/pydata/xarray/blob/main/HOW_TO_RELEASE.md)
- [Commits](pydata/xarray@v2023.10.1...v2023.11.0)

---
updated-dependencies:
- dependency-name: xarray
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -1,5 +1,5 @@
 # This is used to build the CI test environment and so Github can track dependencies.
-xarray==2023.10.1
+xarray==2023.11.0
 pandas==2.1.3
 numpy==1.26.2
 matplotlib==3.8.2