Update to version 0.23.0 dropping Python 3.7 support #86

Job	Run time
test (3.8)	17s
test (3.9)	22s
test (3.10)	19s
test (3.11)	15s
test (3.12)	31s
integration (gunicorn)	19s
integration (gunicorn-internal)	15s
integration (gunicorn-app-factory)	17s
integration (uwsgi)	39s
integration (uwsgi-lazy-apps)	42s
integration (wsgi)	28s
integration (connexion-pydantic)	23s
integration (restful-with-blueprints)	19s
integration (restful-return-none)	14s
integration (restplus-default-metrics)	14s
integration (flask-httpauth)	13s
integration (flask-multi-processes)	13s
integration (reload)	16s
publish	0s
verify	0s
	6m 16s

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