CI: (deps): Bump xarray from 2024.3.0 to 2024.5.0 in /ci

Bumps [xarray](https://github.com/pydata/xarray) from 2024.3.0 to 2024.5.0.
- [Release notes](https://github.com/pydata/xarray/releases)
- [Changelog](https://github.com/pydata/xarray/blob/main/HOW_TO_RELEASE.md)
- [Commits](pydata/xarray@v2024.03.0...v2024.05.0)

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

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

ci/requirements.txt

@@ -6,4 +6,4 @@ pint==0.23
 pyproj==3.6.1
 scipy==1.13.0
 traitlets==5.14.3
-xarray==2024.3.0
+xarray==2024.5.0