Unit tests

Update websockets requirement from <13.0,>=10.4 to >=10.4,<15.0 #71

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Job	Run time
python:3.9, postgres:14	1s
python:3.10, postgres:14	1s
python:3.11, postgres:14	1s
python:3.12, postgres:14	1s
python:3.9, sqlite	1s
python:3.10, sqlite	1s
python:3.11, sqlite	1s
python:3.12, sqlite	1s
docker, python:3.9	1s
docker, python:3.10	1s
DataDog CI Visibility	0s
docker, python:3.11	1s
docker, python:3.12	1s
notify-tests-failing-on-main	0s
	12s