Logs and defaults

[obycode]

• Add more signer logs for help with debugging.
• Change default nakamoto_attempt_time_ms to 5s (from 20s)

[obycode]

• tests::signer::v0::bitcoind_forking_test passes locally
• tests::signer::v0::partial_tenure_fork passes locally
  I opened Test out nakamoto_attempt_time_ms at 60s #5189 to test out if these tests pass in CI when that parameter is reverted back to 20s.

[obycode]

I can see how 5s might not be long enough on these CI runners for a Nakamoto block to be mined. That could definitely cause partial_miner_tenure to fail. It may actually make sense to bump this up to 60s in CI. I will try that out after checking the results of the 20s test.

[blockstack-devops]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.