Tests

Upgrade to python 3.9 -- builtin generic containers #1980

Job	Run time
pyright-scan-docs	1m 18s
check-repo-format	14s
smoke-test-pydantic-v2	1m 37s
test-against-pre-releases-of-dependencies	1m 34s
test-minimum-dependencies	1m 24s
tests (3.9)	1m 24s
test-third-party	2m 3s
run-mypy	17s
tests (3.10)	1m 29s
tests (3.11)	1m 23s
tests (3.12)	1m 29s
run-pyright	26s
tests (3.13)	1m 37s
test-docs-builds	38s
coverage	2m 22s
test-on-windows	2m 20s
	21m 35s

Provide feedback