Reduce test matrix #16760

Job	Run time
pydantic v1, python:3.11	7m 29s
pydantic v2 internals, python:3.11	7m 29s
python:3.8, postgres:14	8m 4s
python:3.9, postgres:14	7m 57s
python:3.10, postgres:14	8m 23s
python:3.11, postgres:14	7m 27s
python:3.12, postgres:14	8m 25s
python:3.8, sqlite	11m 21s
python:3.9, sqlite	10m 51s
python:3.10, sqlite	10m 42s
python:3.11, sqlite	9m 48s
python:3.12, sqlite	11m 9s
docker, python:3.10	5m 33s
docker, python:3.11	5m 48s
sqlalchemy v1, postgres:14 python:3.11	7m 2s
sqlalchemy v1, sqlite python:3.11	9m 43s
notify-tests-failing-on-main	0s
	2h 17m 11s

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