Tests

Change start_time/end_time calculations to stop using deprecated utcf… #2208

Job	Run time
lint_typecheck_webui	1m 3s
Always - Docker verify, push to tag 'master' if on master	7m 42s
flake8	17s
black	17s
mypy	31s
3.12	5m 31s
3.11	6m 1s
3.10	6m 11s
3.9	5m 41s
3.8	5m 30s
PyPI - Publish prerelease on merge commit on master	0s
Tagged - Docker push to tag based on git tag. Also push 'latest' if on master	0s
PyPI - Publish if this is a tagged commit	0s
	38m 44s

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