Support webauthn (#17957)

Migrate from U2F to Webauthn

Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/lfs/server.go

@@ -30,7 +30,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/storage"
 
-	"github.com/golang-jwt/jwt"
+	"github.com/golang-jwt/jwt/v4"
 )
 
 // requestContext contain variables from the HTTP request.
@@ -45,6 +45,7 @@ type Claims struct {
 	RepoID int64
 	Op     string
 	UserID int64
+	// FIXME: Migrate to RegisteredClaims
 	jwt.StandardClaims
 }