ruff: fix C419 unnecessary list comprehension #123

Job	Run time
Examples Conda Py3	6m 11s
Tests for downstream project grudge	10m 0s
Documentation	3m 44s
Tests for downstream project pytential	50m 4s
Pytest Firedrake	6m 13s
Tests for downstream project mirgecom	3s
Examples Firedrake	3m 39s
Mypy	2m 53s
Tests for downstream project mirgecom_examples	4s
Pylint	3m 3s
Pytest Conda Py3	10m 44s
Ruff	5s
	1h 36m 43s

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