Improve logging (#2)

Reviewed-on: #2

pkg/utils/keychain.go

@@ -1,8 +1,8 @@
 package utils
 
 import (
+	"epochsilicon/pkg/log"
 	"fmt"
-	"log"
 
 	"github.com/zalando/go-keyring"
 )
@@ -23,7 +23,7 @@ func SaveSudoPassword(password string) error {
 		return fmt.Errorf("failed to save password to keychain: %v", err)
 	}
 
-	log.Println("Password saved securely to keychain")
+	log.Info("Password saved securely to keychain")
 	return nil
 }
 
@@ -52,7 +52,7 @@ func DeleteSudoPassword() error {
 		return fmt.Errorf("failed to delete password from keychain: %v", err)
 	}
 
-	log.Println("Password removed from keychain")
+	log.Info("Password removed from keychain")
 	return nil
 }