Doen't work properly with CircleCI (?)

[antongolub]

git pull invokes unhandled ssh prompt.

Build log:

[7:52:58 PM] [semantic-release] [@qiwi/semantic-release-gh-pages-plugin] › ℹ  Publishing docs via gh-pages
The authenticity of host 'github.com (192.30.253.112)' can't be established.
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
Are you sure you want to continue connecting (yes/no)? Too long with no output (exceeded 10m0s)

Relates:

• Updates were rejected because the tag already exists in the remote #48
• https://help.github.com/en/articles/testing-your-ssh-connection
• https://discuss.circleci.com/t/git-clone-fails-in-circle-2-0/15211/10
• The authenticity of host 'github.com can't be established semantic-release/semantic-release#1095