chore: prepare `0.4.38` release. (#419) #1369

Job	Run time
build-and-test (3.9)	7m 49s
build-and-test (3.12)	10m 51s
build-and-test (3.11)	9m 11s
build-and-test (3.10)	8m 45s
build-and-test (3.13)	9m 13s
Build and publish to PyPI registry	23s
	46m 12s

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