Eclipse LSP4Jakarta Github clone on CI fails with Warning: the ECDSA host key for 'github.com' differs from the key for the IP address '140.82.113.3'

Summary

Jenkins job for Eclipse LSP4Jakarta fails on GitHub clone:

Warning: the ECDSA host key for 'github.com' differs from the key for the IP address '140.82.113.3'

See https://ci.eclipse.org/lsp4jakarta/job/LSP4Jakarta%20Git%20Test/8/console

Updating known_hosts fails, since the filesystem seems to be read only.

Steps to reproduce

Using Jenkins pipeline script:

pipeline {
  agent any
  stages {
      stage('Clone') {
            steps {
                dir('lsp4jakarta') {
                    git branch: "main",
                        credentialsId: 'github-bot-ssh',
                        url: 'git@github.com:eclipse/lsp4jakarta.git'
                }
            }
      }
  }
}

What is the current bug behavior?

Jenkins job is unable to clone repository

What is the expected correct behavior?

Jenkins job should be able to clone repository, create new tags, commits, etc.

Relevant logs and/or screenshots

https://ci.eclipse.org/lsp4jakarta/job/LSP4Jakarta%20Git%20Test/8/console

Priority

• Urgent
• High
• Medium
• Low

Severity

• Blocker
• Major
• Normal
• Low

Impact

(What is the impact of this issue? Is it blocking a release? Are there any time constraints?, for example: "We have a release tomorrow")

Blocking automatically tagging future releases.