Fix record: missing @throws tag on Result::loadFromMysqliResult()

[tyrsson]

Context

Part of #60.

Data

Result::loadFromMysqliResult() gained a guard clause in an earlier commit on this branch (fixing a non-existent-method finding, tracked in issue #59). That guard throws PhpDb\Adapter\Exception\RuntimeException, but the method's docblock was missing the corresponding @throws tag, which mago analyze then flagged as unhandled-thrown-type.

Fixed in 5fae58c by adding @throws Exception\RuntimeException to the method's docblock.

This issue is a record of where/why the gap was introduced. Close once confirmed it does not resurface.