Move to ldap.v3 to fix #5928 (#6105) (#6107)

Signed-off-by: Andrew Thornton <[email protected]>

Author: zeripath

Gopkg.lock

@@ -97,8 +97,8 @@ ignored = ["google.golang.org/appengine*"]
   version = "1.31.1"
 
 [[constraint]]
-  name = "gopkg.in/ldap.v2"
-  version = "2.4.1"
+  name = "gopkg.in/ldap.v3"
+  version = "3.0.1"
 
 [[constraint]]
   name = "gopkg.in/macaron.v1"

Gopkg.toml

@@ -11,9 +11,9 @@ import (
 	"fmt"
 	"strings"
 
-	"gopkg.in/ldap.v2"
-
 	"code.gitea.io/gitea/modules/log"
+
+	ldap "gopkg.in/ldap.v3"
 )
 
 // SecurityProtocol protocol type