The authenticity of host '' can't be established

All of my build pipeline have stopped working in the last week without changes to the config.yml.
This is the error message I am seeing for five out of seven of my pipelines.

#!/bin/bash -eo pipefail
yarn semantic-release

yarn run v1.3.2
$ semantic-release
[Semantic release]: Running semantic-release version 15.0.2
The authenticity of host ' (' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? Too long with no output (exceeded 10m0s)