feat: add logger.WithFields (#2546)

core/logx/logger.go

@@ -45,4 +45,6 @@ type Logger interface {
 	WithContext(ctx context.Context) Logger
 	// WithDuration returns a new logger with the given duration.
 	WithDuration(d time.Duration) Logger
+	// WithFields returns a new logger with the given fields.
+	WithFields(fields ...LogField) Logger
 }