Always print connectivity report (paritytech#3677)

This is printed every 10 minutes, I see no reason why it shouldn't be in
all the logs, it would give us valuable information about what is going
on with node connectivity when validators come-back to us to report
issues.

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

polkadot/node/network/gossip-support/src/lib.rs

@@ -508,7 +508,7 @@ where
 			);
 		}
 		let pretty = PrettyAuthorities(unconnected_authorities);
-		gum::debug!(
+		gum::info!(
 			target: LOG_TARGET,
 			?connected_ratio,
 			?absolute_connected,