我如何解决一个非签名的提交错误，使之进入管道

Question

在GoCI的构建管道的GitHistoryChecker阶段出现错误，并显示以下错误：

05:48:41.029 FAILURE: [git commit hash] has not been signed with a valid signature
05:48:41.029 
05:48:41.030   Date:        2018-11-15 13:49:12 +0000
05:48:41.030   Author:      Stefan Brink <stefan@jemstep.com>
05:48:41.030   Committer:   Stefan Brink <stefan@jemstep.com>
05:48:41.030   Commit Date: 2018-11-15 13:49:12 +0000
05:48:41.030   SHA:         [SHA here]

我该如何解决？