Bump xarray from 2025.11.0 to 2025.12.0 in /requirements (#3179)

dependabot[bot] · web-flow · commit 5e4a80688644 · 2025-12-09T09:31:50.000+01:00
diff --git a/requirements/datasets.txt b/requirements/datasets.txt
@@ -9,4 +9,4 @@ rioxarray==0.19.0
 scikit-image==0.25.2
 scipy==1.16.3
 webdataset==1.0.2
-xarray==2025.11.0
+xarray==2025.12.0
