Update unit tests to use new test Context

[sjberman]

As of Go 1.24, the testing package provides a t.Context method that creates a context that is canceled once a test completes.

https://tip.golang.org/doc/go1.24#testingpkgtesting

Acceptance

• update unit tests to use new testing.Context instead of the various context.TODO and context.Background, etc, that we currently use

[faustind]

Hi @sjberman

I'm keen to take on this task if there's no one working on it yet.

[sjberman]

Hi @faustind, thanks for your interest! We're currently re-architecting our code a bit, which will result in some tests being removed and some being changed. I'd recommend keeping an eye on #3318, and once that is merged in, then you can pick up this story! Just don't want you to start on it and then have to restart again.