Deply with semantic-release stopped working due to authenticity host cannot be established

Build Environment
1

Hi, I setup while ago my ci/cd where the deploy use sematic-release to publish a package on npm.
Now stopped to work showing the message in console:

The authenticity of host 'github.com (140.82.113.4)' can't be established.
RSA key fingerprint is SHA256:<shafingerpringobscured>.
Are you sure you want to continue connecting (yes/no)?

I don’t understand what happens. Everything was working fine until a week ago.
I checked the ssh fingerprint on github and it’s correct.
This is my config (omitting the non relevant parts):

# Javascript Node CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-javascript/ for more details

node_12: &node_12
  docker:
    - image: circleci/node:12.8.1

version: 2
jobs:
  deploy:
    working_directory: ~/project_12
    <<: *node_12
    steps:
      - attach_workspace:
          at: .
      - run: npx semantic-release

workflows:
  version: 2
  build_and_deploy:
    jobs:
      - deploy:
          filters:
            branches:
              only:
                - master
2

Could you pass us a build link? It would help us better nail down why this is happening.

Usually this happens due to an SSH key being revoked, or missing. Could you try regenerating the key, and re-applying it to this project?