io: changed some codes in net_io_propagate_critical_error

EIO was removed because it was too broad and ENOTTY was added because it
seems to happen in some deployments even though it doesn't make a lot
of sense.

Signed-off-by: Leonardo Alminana <[email protected]>

src/flb_io.c

@@ -184,7 +184,7 @@ static void net_io_propagate_critical_error(
     case ENOTCONN:
     case EPIPE:
     case EACCES:
-    case EIO:
+    case ENOTTY:
     case ENETDOWN:
     case ENETUNREACH:
         connection->net_error = errno;