Does not use REVIEWDOG_GITHUB_API_TOKEN unless REVIEWDOG_SKIP_DOGHOUSE is set

[dobesv]

I was confused that it wouldn't use my REVIEWDOG_GITHUB_API_TOKEN because the docs made it sound like it would, but apparently it only uses that if you also set either GITHUB_ACTIONS or REVIEWDOG_SKIP_DOGHOUSE.

Isn't setting REVIEWDOG_GITHUB_API_TOKEN enough evidence that I want it to use that token? It seems strange to have to double-confirm this by also setting REVIEWDOG_SKIP_DOGHOUSE.