Synchronise known-hosts for v11

[weyfonk]

Before approving this PR, please do one of the following:

• Check new fingerprints against the following URLs:
  • Bitbucket: here or using curl https://bitbucket.org/site/ssh
  • Github: here
  • Gitlab: here
  • Azure DevOps: here
• Check out the PR's branch locally (for instance running gh pr checkout <url>) and:
  1. Run the update script again
  2. Check that charts/fleet/templates/configmap_known_hosts.yaml is left unchanged as a result.

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Synchronise known-hosts for v11

synchronise config map from new entries

ran shell command "set -x\ngit show main:.github/scripts/update_known_hosts_configmap.sh > /tmp/script\nchmod +x /tmp/script\nbash /tmp/script\n"

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