执行terraform plan遇Host key verification failed错误（GitHub SSO）求助

执行terraform plan时出现如下错误：

╷
│ Error: Failed to download module
│
│ Could not download module "foo" (main.tf:123) source code from
│ "git@github.com:my-company/some-repo": error downloading
│ 'ssh://git@github.com/my-company/some-repo': /usr/bin/git exited with 128:
│ Cloning into '.terraform/modules/foo'
│ Host key verification failed.
│ fatal: Could not read from remote repository.
│
│ Please make sure you have the correct access rights
│ and the repository exists.

已完成的排查操作：

• 本地SSH密钥已通过ssh-add -l确认加载
• 直接执行git clone ssh://git@github.com/my-company/some-repo可成功克隆目标仓库
• 该仓库属于公司GitHub组织，需通过GitHub SSO认证访问
• 已查阅HashiCorp官方文档中的对应解决方案，完成所有建议操作后问题仍未解决

有没有人知道这个问题的解决办法？

内容的提问来源于stack exchange，提问作者Dommondke