Add `--multisig` Flag to Ping Command to Verify Multisig Support

[MatusKysel]

Background

Some operators may be misconfigured or not connected to Ethereum 1.0 (eth1), which is necessary for multisig functionality. We need a way to identify operators that support multisig.

Task

• Enhance Ping Command:

  • Add a --multisig flag to the ping command.
  • When this flag is used, the ping command should fail if the operator is not connected to eth1.

• Update Health Check:

  • Modify the health check to verify multisig support on all operators.

Acceptance Criteria

• The ping command with --multisig:

  • Succeeds only if the operator is connected to eth1.
  • Fails with a clear error message if not connected.

• Health check reports accurately reflect multisig support status.

• Documentation is updated to include the new --multisig flag.

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By implementing this, we can ensure that we only use operators that support multisig and are properly connected to eth1.

[pavelkrolevets]

IMO we dont even need a flag to ping. We just GET new pong message with fields indicating that its multisig + connected or nothing. In this case if we ping old operators we got a message that they online but multisig not supported.

Here is the implementation https://github.com/ssvlabs/ssv-dkg/pull/137