Override "terms_helper_spec"

What does this MR do and why?

Fix pipeline job https://jihulab.com/gitlab-cn/gitlab/-/jobs/17306228

报错原因：Upstream 在 Spec 中增加了一个字符串，它并不是 i18n 字符串，不符合规范。只能在极狐迁就一下。

Upstream MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/165093/diffs#499ad8cf7fa594f7b1f86cf4d6732147fda4c129_0_28

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