fix: gracefully handle remote stream closure during ping

[achingbrain]

This PR fixes the UnexpectedEOFError issue. This issue happens because the ping protocol does not handle the case where the remote peer closes the stream and with the introduction of connectionMonitor this became an issue. It opens a stream for the ping protocol, sends a ping, gets the response then closes the stream. The local peer throws an exception and triggers a yamux reset.

Change checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation if necessary (this includes comments as well)
• I have added tests that prove my fix is effective or that my feature works