Make Bolt log wait strategy more lenient

[fbiville]

Fixes #4454

[fbiville]

I could not find a simple way to write a test around the updated log strategy. I'm open to suggestions.

[bsideup]

Hi @fbiville,

I am just wondering - since we're already checking for 200 answer from the API, does it make sense to check for logs in addition to it?

[fbiville]

The 200 check is only for the HTTP server (https://neo4j.com/docs/http-api/current/), the other check is for the Bolt protocol (https://7687.org) server which serves another purpose.

[kiview]

And both servers can become ready independent of each other?

[fbiville]

And both servers can become ready independent of each other?

Sorry for the late reply. Indeed, there is no relation between the two. One server being ready does not mean the other is and vice-versa.