Updated the main.go file

Add a timeout parameter in the ConfigCenterShim function.

Signed-off-by: Jia Sui <jia.sui@advantech.com.cn>

example/main.go

@@ -4,6 +4,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"time"
 
 	"gitlab.wise-paas.com/jia.sui/shim"
 )
@@ -37,7 +38,7 @@ func main() {
 		shim.POSTGRES,
 	}
 
-	err := shim.ConfigCenterShim(host, depends, dbs)
+	err := shim.ConfigCenterShim(host, depends, dbs, time.Second*10)
 	if err != nil {
 		panic(err)
 	}