Enable addtional linters (#34085)

enable mirror, usestdlibbars and perfsprint 
part of: https://github.com/go-gitea/gitea/issues/34083

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/oauth2_provider/access_token.go

@@ -7,6 +7,7 @@ import (
 	"context"
 	"fmt"
 	"slices"
+	"strconv"
 	"strings"
 
 	auth "code.gitea.io/gitea/models/auth"
@@ -177,7 +178,7 @@ func NewAccessTokenResponse(ctx context.Context, grant *auth.OAuth2Grant, server
 				ExpiresAt: jwt.NewNumericDate(expirationDate.AsTime()),
 				Issuer:    setting.AppURL,
 				Audience:  []string{app.ClientID},
-				Subject:   fmt.Sprint(grant.UserID),
+				Subject:   strconv.FormatInt(grant.UserID, 10),
 			},
 			Nonce: grant.Nonce,
 		}

services/oauth2_provider/jwtsigningkey.go

@@ -31,7 +31,7 @@ type ErrInvalidAlgorithmType struct {
 }
 
 func (err ErrInvalidAlgorithmType) Error() string {
-	return fmt.Sprintf("JWT signing algorithm is not supported: %s", err.Algorithm)
+	return "JWT signing algorithm is not supported: " + err.Algorithm
 }
 
 // JWTSigningKey represents a algorithm/key pair to sign JWTs

services/oauth2_provider/token.go

@@ -4,6 +4,7 @@
 package oauth2_provider //nolint
 
 import (
+	"errors"
 	"fmt"
 	"time"
 
@@ -44,12 +45,12 @@ func ParseToken(jwtToken string, signingKey JWTSigningKey) (*Token, error) {
 		return nil, err
 	}
 	if !parsedToken.Valid {
-		return nil, fmt.Errorf("invalid token")
+		return nil, errors.New("invalid token")
 	}
 	var token *Token
 	var ok bool
 	if token, ok = parsedToken.Claims.(*Token); !ok || !parsedToken.Valid {
-		return nil, fmt.Errorf("invalid token")
+		return nil, errors.New("invalid token")
 	}
 	return token, nil
 }