Bump xarray from 2023.11.0 to 2023.12.0

Bumps [xarray](https://github.com/pydata/xarray) from 2023.11.0 to 2023.12.0.
- [Release notes](https://github.com/pydata/xarray/releases)
- [Changelog](https://github.com/pydata/xarray/blob/main/HOW_TO_RELEASE.md)
- [Commits](pydata/xarray@v2023.11.0...v2023.12.0)

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

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

requirements_dev.txt

@@ -17,7 +17,7 @@ ruamel.yaml==0.18.5
 scipy==1.11.4
 sdtfile==2023.9.28
 tabulate==0.9.0
-xarray==2023.11.0
+xarray==2023.12.0
 
 # documentation dependencies
 -r docs/requirements.txt