Fix non-existing log method in HarbormasterManagementRestartWorkflow
Summary: In `HarbormasterManagementRestartWorkflow`, `logSkip()` is called. A method with such a name has never existed in `PhabricatorManagementWorkflow`. Given the five available `log*()` methods, replace the call with `logInfo()` which seems most appropriate.
Test Plan: Run static code analysis which complains about `Call to an undefined method HarbormasterManagementRestartWorkflow::logSkip()`; read the code.
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Tags: #almanac_drydock_harbormaster
Differential Revision: https://we.phorge.it/D25742