Merge pull request #4018 from Unidata/dependabot-pip-ci-dask-2026.3.0

CI: (deps): Bump dask from 2026.1.2 to 2026.3.0 in /ci

Author: unidata-pr-helper[bot]

ci/extra_requirements.txt

@@ -1,5 +1,5 @@
 cartopy==0.25.0
-dask==2026.1.2
+dask==2026.3.0
 netCDF4==1.7.4
 shapely==2.1.2
 boto3==1.42.0