Update Connectivity04 implementation #1393
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Purpose
This PR proposes an update to the implementation of Connectivity04 following a specification update.
Note that this is the first implementation to make use of MethodsV2.
Context
Test case specification update: zonemaster/zonemaster#1298
Test zones specification: zonemaster/zonemaster#1299
Changes
lib/Zonemaster/Engine/ASNLookup.pm
lib/Zonemaster/Engine/Test/Connectivity.pm
t/Test-connectivity04.t
t/Test-connectivity04.data
How to test this PR
Unit tests are updated (based on zonemaster/zonemaster#1299) and should pass.
Note that scenario ERROR-PREFIX-DATABASE-3 is currently disabled because since its query ends up blacklisted (no response), it causes subsequent queries to be blacklisted as well. I'll look for a workaround.