Fix some deprecations #2370

Job	Run time
Pytest Firedrake	6m 26s
Documentation	4m 48s
Examples Conda Py3	7m 24s
Tests for downstream project grudge	10m 29s
Examples Firedrake	3m 46s
Mypy	3m 17s
Tests for downstream project pytential	49m 57s
Pylint	3m 38s
Tests for downstream project mirgecom	6s
Pytest Conda Py3	10m 58s
Tests for downstream project mirgecom_examples	4s
Ruff	8s
	1h 41m 1s

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