staticcheck: SA1019: ignore deprecated objects used in external tests

[dominikh]

We already ignore deprecated objects that are used in the same package and its tests, but not if the tests are external.

[sourabh-upadhyay]

@dominikh I am running staticcheck on my project, but the Deprecated: warning is not reported. Is there any reason why?

Or what should I do to allow them?

[ainar-g]

@sourabh-upadhyay, this is probably not the issue you are looking for. Please make sure that your Deprecated directive is in a paragraph of its own, see #926 (comment).

[dominikh]

I cannot reproduce this, and according to the git history, ever since the first implementation of the check we've been checking for *_test