Improve functionality and consistency of Sanic.event() #197

Job	Run time
Linux / Python 3.8 / tox -e security	30s
Linux / Python 3.9 / tox -e security	31s
Linux / Python 3.10 / tox -e security	26s
Linux / Python 3.11 / tox -e security	28s
Linux / Python 3.10 / tox -e lint	29s
Linux / Python 3.8 / tox -e type-checking	2m 12s
Linux / Python 3.9 / tox -e type-checking	31s
Linux / Python 3.10 / tox -e type-checking	31s
Linux / Python 3.11 / tox -e type-checking	30s
Linux / Python 3.8 / tox -e py38	4m 12s
Linux / Python 3.8 / tox -e py38-no-ext	3m 57s
Linux / Python 3.9 / tox -e py39	4m 3s
Linux / Python 3.9 / tox -e py39-no-ext	4m 2s
Linux / Python 3.10 / tox -e py310	7m 29s
Linux / Python 3.10 / tox -e py310-no-ext	4m 0s
Linux / Python 3.11 / tox -e py311	3m 38s
Linux / Python 3.11 / tox -e py311-no-ext	3m 26s
Windows / Python 3.8 / tox -e py38-no-ext	4m 41s
Windows / Python 3.9 / tox -e py39-no-ext	4m 41s
Windows / Python 3.10 / tox -e py310-no-ext	5m 5s
Windows / Python 3.11 / tox -e py310-no-ext	4m 56s
	1h 0m 18s

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