build(deps): bump xarray in /.github/dependabot

Bumps [xarray](https://github.com/pydata/xarray) from 2024.11.0 to 2025.1.1.
- [Release notes](https://github.com/pydata/xarray/releases)
- [Changelog](https://github.com/pydata/xarray/blob/main/HOW_TO_RELEASE.md)
- [Commits](pydata/xarray@v2024.11.0...v2025.01.1)

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

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

.github/dependabot/constraints.txt

@@ -16,4 +16,4 @@ pymysql==1.1.1
 requests==2.32.3
 toml==0.10.2
 toolz==1.0.0
-xarray==2024.11.0
+xarray==2025.1.1