Improve type annotations in kernel.creation #3865

Job	Run time
Typos	5s
Conda Pytest (ubuntu-latest)	4m 39s
Tests for downstream project pytato	9m 6s
Tests for downstream project grudge	10m 55s
Ruff	7s
Conda Pytest (macos-latest)	5m 5s
Conda Pytest with Intel CL	4m 8s
Conda Pytest Twice (for cache behavior)	6m 36s
Tests for downstream project meshmode	10m 39s
basedpyright	2m 10s
Validate CITATION.cff	8s
Conda Examples	2m 26s
Tests for downstream project Firedrake	2m 33s
Tests for downstream project arraycontext	3m 13s
Conda Pytest without arg check	4m 28s
Documentation	2m 31s
Tests for downstream project pytential	18m 36s
	1h 27m 25s

Provide feedback