MAINT: Temporarily pin xarray<2026.4.0 #2474

Job	Run time
should run ci	7s
GHA Security Analysis using Zizmor	18s
cache-pixi-lock	1m 24s
build-and-upload-nightly-parcels	2m 24s
Unit tests: ubuntu \| pixi run -e test-py313 tests	11m 36s
TypeChecking: pixi run typing	1m 20s
Unit tests: ubuntu \| pixi run -e test-minimum tests	12m 11s
Unit tests: ubuntu \| pixi run -e test tests	7m 55s
Unit tests: ubuntu \| pixi run -e test-py311 tests	10m 11s
Unit tests: windows \| pixi run -e test tests	15m 4s
Integration: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests-notebooks	0s
merge-test-artifacts	-1s
	1h 2m 29s

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