Upgrade testing deps #1099

Job	Run time
Run tests with coverage	3m 0s
Run tests with different pydantic versions	3m 42s
Run tests on legacy versions (3.7)	2m 5s
Run tests (3.8)	2m 1s
Run linters (flake8)	1m 45s
Run tests (3.9)	1m 59s
Run linters (pydocstyle)	1m 49s
Run tests (3.10)	1m 55s
Run linters (mypy)	1m 50s
Run tests (3.11)	2m 3s
Run linters (pylint)	1m 52s
Run tests (3.12)	2m 5s
Run tests (3.13)	2m 10s
	28m 16s

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