RepositoryAnalysisFailureIT: disrupt earlier

[bcully]

The fix to #126747 was only for one test. This applies that change to all the tests in this suite that need it.

Fixes #127029

[elasticsearchmachine]

Pinging @elastic/es-distributed-coordination (Team:Distributed Coordination)

[DaveCTurner]

Could we extract a method:

    private static CountDown createDisruptionCountdown(RepositoryAnalyzeAction.Request request) {
        // requests that create copies count as two blobs. Halving the count ensures that we trigger the disruption
        // even if every request is a copy
        return new CountDown(between(1, request.getBlobCount() / 2));
    }

That way we won't leave readers confused about the / 2.

[bcully]

Could we extract a method:

    private static CountDown createDisruptionCountdown(RepositoryAnalyzeAction.Request request) {
        // requests that create copies count as two blobs. Halving the count ensures that we trigger the disruption
        // even if every request is a copy
        return new CountDown(between(1, request.getBlobCount() / 2));
    }

That way we won't leave readers confused about the / 2.

Sure.

[DaveCTurner]

LGTM