Update ipython requirement from ==8.12.* to ==8.20.* #28

Job	Run time
python:3.8, postgres:13, --exclude-services	1s
python:3.9, postgres:13, --exclude-services	1s
python:3.10, postgres:13, --exclude-services	1s
python:3.11, postgres:13, --exclude-services	1s
python:3.8, postgres:14, --exclude-services	1s
python:3.9, postgres:14, --exclude-services	1s
python:3.10, postgres:14, --exclude-services	1s
python:3.11, postgres:14, --exclude-services	1s
pydantic v1, python:3.8, postgres:14, --exclude-services	1s
python:3.8, sqlite, --exclude-services	1s
pydantic v1, python:3.9, postgres:14, --exclude-services	1s
python:3.8, sqlite, --only-services	1s
pydantic v1, python:3.10, postgres:14, --exclude-services	1s
python:3.9, sqlite, --exclude-services	1s
pydantic v1, python:3.11, postgres:14, --exclude-services	1s
python:3.9, sqlite, --only-services	1s
pydantic v1, python:3.8, sqlite, --exclude-services	1s
python:3.10, sqlite, --exclude-services	1s
pydantic v1, python:3.8, sqlite, --only-services	1s
python:3.10, sqlite, --only-services	1s
pydantic v1, python:3.9, sqlite, --exclude-services	1s
python:3.11, sqlite, --exclude-services	1s
pydantic v1, python:3.9, sqlite, --only-services	1s
python:3.11, sqlite, --only-services	1s
pydantic v1, python:3.10, sqlite, --exclude-services	1s
pydantic v1, python:3.10, sqlite, --only-services	1s
pydantic v1, python:3.11, sqlite, --exclude-services	1s
pydantic v1, python:3.11, sqlite, --only-services	1s
notify-tests-failing-on-main	0s
	28s

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