Tree: various speedups #3341

Job	Run time
Ruff	4s
Mypy	1m 18s
Pylint	1m 32s
Tests for downstream project Firedrake	4m 52s
Conda Examples	1m 51s
Tests for downstream project arraycontext	2m 27s
Tests for downstream project meshmode	5m 4s
Conda Pytest (ubuntu-latest)	3m 50s
Conda Pytest with Intel CL	4m 5s
Conda Pytest without arg check	3m 45s
Tests for downstream project grudge	5m 3s
Conda Pytest (macos-latest)	3m 32s
Tests for downstream project pytential	5m 3s
Conda Pytest Twice (for cache behavior)	5m 4s
Typos	11s
Tests for downstream project pytato	5m 3s
Validate CITATION.cff	12s
Documentation	1m 24s
	54m 20s

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