当我将他们的 repo 添加到 apt 源并运行时，出现以下错误apt update：
E: Failed to fetch https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client/dists/xenial/Release No Hash entry in Release file /var/lib/apt/lists/partial/atlassian.artifactoryonline.com_atlassian_hipchat-apt-client_dists_xenial_Release which is considered strong enough for security purposes
E: Some index files failed to download. They have been ignored, or old ones used instead.
我知道这是因为包签名的安全性变化，我已经打开了 Atlassian 的支持票，但我没有收到他们的回复。
同时，有什么解决方法吗？