Build improvements #1247

Job	Run time
Run tests with different pydantic versions	3m 19s
Run tests with coverage	2m 48s
Run linters (pylint)	1m 35s
Run linters (pydocstyle)	1m 29s
Run linters (mypy)	1m 32s
Run linters (flake8)	1m 25s
Run tests (3.8)	1m 51s
Run tests (3.12)	1m 49s
Run tests (3.11)	1m 53s
Run tests (3.9)	1m 51s
Run tests (3.10)	1m 52s
Run tests (3.13)	1m 55s
	23m 19s

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