ArrayContext.zeros: accept DTypeLike #1969

Job	Run time
Examples Conda Py3	1m 34s
Pytest Conda Py3 Intel	2m 18s
Typos	8s
Ruff	13s
basedpyright	1m 58s
Pytest Conda Py3 POCL	3m 4s
Documentation	2m 5s
Tests for downstream project meshmode	11m 14s
Tests for downstream project grudge	11m 38s
Tests for downstream project mirgecom_examples	5s
Tests for downstream project mirgecom	6s
	34m 23s

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