[ews] Do not send stepStarted event to Github directly for webkit/webkit repo as we already have status-bubbles for that.
Pull request: https://github.com/WebKit/WebKit/pull/3940
Committed 254081@main (2a70142cb78c): <https://commits.webkit.org/254081@main> Reviewed commits have been landed. Closing PR #3940 and removing active labels.
<rdar://problem/99464117>