Print out URLs of connected services

[nflaig]

Problem description

It would be great if we could print out URLs of connected services. This makes it easier to verify configuration and detect issues early.

We already do this for external signers

lodestar/packages/cli/src/cmds/validator/signers/logSigners.ts

Line 30 in f5e2c3a

logger.info(`External signers on URL: ${url}`);

 info: External signers on URL: http://web3signer.web3signer-prater.dappnode:9000

but it is missing for other services such as exection clients or beacon nodes.

Solution description

Print out URLs of connected services

Beacon node

• execution urls
• builder urls
• eth1 provider urls

Validator client

• beacon node urls

Additional context

No response