Post test results even if build succeeds

It is not necessarily the case that a test failure causes a build failure. I would like the test results posted even if the build succeeds.

Start by tracing the plugin's build and test-result notification flow to find where successful builds are handled. Confirm how test results are currently posted, then verify that results are also posted when the build succeeds despite a test failure.

Written by the indexing model from the issue text.