Reduce the default connection timeout value

In interactive use, if user doesn't sudo or running as root
then has to wait too long before getting a connection failure.

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

cmd/crictl/main.go

@@ -33,7 +33,7 @@ import (
 )
 
 const (
-	defaultTimeout = 10 * time.Second
+	defaultTimeout = 2 * time.Second
 )
 
 var (