Imporve dict typings #1349

Job	Run time
Run tests with different pydantic versions	3m 17s
Run tests with coverage	2m 58s
Run tests (3.10)	1m 53s
Run tests (3.11)	1m 51s
Run tests (3.8)	1m 55s
Run tests (3.12)	1m 56s
Run linters (flake8)	1m 37s
Run tests (3.13)	2m 0s
Run linters (mypy)	1m 42s
Run linters (pydocstyle)	1m 43s
Run linters (pylint)	1m 40s
Run tests (3.9)	1m 54s
	24m 26s

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