function workflowRuns( opts, clbk ) {
	factory( opts, clbk )();
}
Gets all workflow runs for a repository.

@param {Object} opts - function options
@param {string} opts.slug - GitHub slug (:owner/:repo)
@param {string} [opts.token] - GitHub access token
@param {string} [opts.useragent] - user agent string
@param {string} [opts.actor] - only return workflow runs by the specified user
@param {string} [opts.branch] - only return workflow runs associated with a branch
@param {string} [opts.event] - only return workflow runs triggered by the specified event
@param {string} [opts.status] - only return workflow runs with the specified check run status or conclusion
@param {Function} clbk - callback to invoke upon query completion
@returns {void}