_ReductionInameUniquifier: speed up get_cache_key #3456

Job	Run time
Ruff	5s
Typos	4s
Mypy	1m 31s
Pylint	1m 50s
Conda Pytest (ubuntu-latest)	3m 51s
Conda Pytest without arg check	3m 54s
Conda Pytest (macos-latest)	3m 42s
Conda Pytest Twice (for cache behavior)	4m 58s
Documentation	1m 37s
Tests for downstream project Firedrake	2m 40s
Tests for downstream project arraycontext	2m 27s
Conda Examples	2m 11s
Tests for downstream project meshmode	9m 27s
Tests for downstream project grudge	10m 6s
Tests for downstream project pytential	39m 25s
Tests for downstream project pytato	5m 58s
Conda Pytest with Intel CL	3m 25s
Validate CITATION.cff	6s
	1h 37m 17s

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