fix(runner): reset "current test" state on dynamic skip

[hi-ogawa]

Description

Closes #4812

The tests I added are not a repro of the referenced issue, but I think this test demonstrates the fix more concisely.

I also locally verified the issue's repro is fixed. If it's desired to add such tests, then I can do that, but I felt it's a little overkill since it would probably requires a dedicated test directory and singleThread option to reproduce.

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