`async void` in unit tests

[justindbaur]

Describe the bug
My bug is not with github actions runners at all, it's just alerting to possibly poisoned tests in the codebase. This is just the only template that allows issue creation.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://github.com/search?q=repo%3Aactions%2Frunner+%22async+void%22&type=code
2. See that there are many tests using async void
3. Read https://www.damirscorner.com/blog/posts/20220415-UsingAsyncVoidInXunitTests.html

Expected behavior
Expect async void tests to property fail if they are broken.

I would be more than happy to provide a PR converting these all to async Task