py-bbp-workflow: bump, update xarray from upstream #1104

Job	Run time
changes	3s
prechecks / validate	46s
prechecks / style	1m 12s
prechecks / audit / package-audits	3m 38s
all-prechecks	1s
unit-tests	0s
windows	0s
bootstrap	0s
all	0s
	5m 40s

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