Sends a ping every 15 seconds to keep the session alive even if no
protocol messages are being propagated. Additionally, sets a hard
timeout of 5 minutes when not actively streaming logs to drop the
connection.
By default, we want streaming logs to be able to stream debug logs
from cloudflared without needing to update the remote cloudflared's
configuration. This disconnects the provided local log level sent
to console, file, etc. from the level that management tunnel will
utilize via requested filters.
Devin Carr