Test

Fix datashader fill_alpha applied twice (#552) #1287

Job	Run time
get-environments	8s
hatch-test.py3.11-stable	3m 39s
hatch-test.py3.14-stable	5m 17s
hatch-test.py3.14-pre (PRE-RELEASE DEPENDENCIES)	3m 1s
Tests pass in all hatch environments	2s
	12m 7s

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