Bump Github actions versions #23

Job	Run time
Tests for downstream project Firedrake	15m 20s
Documentation	1m 31s
Tests for downstream project arraycontext	2m 27s
Conda Examples	2m 0s
Tests for downstream project meshmode	10m 10s
Tests for downstream project grudge	8m 49s
Flake8	19s
Mypy	1m 35s
Tests for downstream project pytential	32m 50s
Pylint	1m 50s
Tests for downstream project pytato	5m 0s
Conda Pytest with Intel CL	3m 53s
Conda Pytest (ubuntu-latest)	3m 50s
Conda Pytest without arg check	3m 50s
Conda Pytest Twice (for cache behavior)	5m 6s
Conda Pytest (macos-latest)	6m 32s
Validate CITATION.cff	6s
	1h 45m 8s

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