Update version to 1.6.1

Author: semihalev

README.md

@@ -127,7 +127,7 @@ example.com.		0	CH	HINFO	"Host" "IPv6:[2001:500:8f::53]:53 rtt:147ms health:[GOO
 example.com.		0	CH	HINFO	"Host" "IPv6:[2001:500:8d::53]:53 rtt:148ms health:[GOOD]"
 ```
 
-## Configuration (v1.6.0)
+## Configuration (v1.6.1)
 
 | Key                  | Description                                                                                                         |
 | -------------------- | ------------------------------------------------------------------------------------------------------------------- |

config/config.go

@@ -17,7 +17,7 @@ import (
 	"github.com/semihalev/zlog/v2"
 )
 
-const configver = "1.6.0"
+const configver = "1.6.1"
 
 // Config type.
 type Config struct {

sdns.go

@@ -19,7 +19,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const version = "1.6.0"
+const version = "1.6.1"
 
 var (
 	cfgPath string