Upgrade testing deps #1105

Job	Run time
Run tests with different pydantic versions	3m 36s
Run tests on legacy versions (3.7)	2m 24s
Run linters (flake8)	1m 49s
Run tests (3.8)	2m 1s
Run linters (pydocstyle)	1m 50s
Run tests with coverage	3m 2s
Run tests (3.9)	1m 58s
Run linters (mypy)	1m 54s
Run tests (3.10)	2m 6s
Run linters (pylint)	58s
Run tests (3.11)	2m 1s
Run tests (3.12)	2m 2s
Run tests (3.13)	2m 8s
	27m 49s

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