code: void cancelBuildsOnUpdate(Runnable closure) {
          GhprbCancelBuildsOnUpdateContext context = new GhprbCancelBuildsOnUpdateContext();
          ContextExtensionPoint.executeInContext(closure, context);
  
          extensions.add(new GhprbCancelBuildsOnUpdate(context.getOverrideGlobal()));
      }
docs: Overrides global settings for cancelling builds when a PR was updated