add TaggedExpression #3290

Job	Run time
Mypy	1m 31s
Ruff	7s
Tests for downstream project Firedrake	1m 59s
Conda Examples	1m 52s
Tests for downstream project arraycontext	2m 44s
Documentation	1m 29s
Tests for downstream project meshmode	10m 22s
Pylint	1m 56s
Tests for downstream project grudge	10m 35s
Conda Pytest (ubuntu-latest)	3m 43s
Conda Pytest with Intel CL	3m 51s
Tests for downstream project pytential	54m 37s
Conda Pytest (macos-latest)	3m 26s
Conda Pytest without arg check	3m 55s
Tests for downstream project pytato	6m 27s
Conda Pytest Twice (for cache behavior)	3m 51s
Typos	3s
Validate CITATION.cff	10s
	1h 52m 38s

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