Array(Protocol): rename getitem parameter #1928

Job	Run time
Ruff	11s
Typos	5s
Pytest Conda Py3 POCL	2m 28s
Examples Conda Py3	1m 23s
Pytest Conda Py3 Intel	2m 11s
Documentation	1m 52s
basedpyright	2m 7s
Tests for downstream project meshmode	11m 28s
Tests for downstream project mirgecom_examples	5s
Tests for downstream project mirgecom	6s
Tests for downstream project grudge	10m 24s
	32m 20s

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