auth: add missing include

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>

diff --git a/src/auth/AuthClient.h b/src/auth/AuthClient.h
index c4ca019925f7c94d6f7fd5d8481fa44a4f0b0ee7..fc102ebc107e8924116f0c3f5a2f2163c488edd4 100644 (file)
--- a/src/auth/AuthClient.h
+++ b/src/auth/AuthClient.h
@@ -4,6 +4,7 @@
 #pragma once
 
 #include <cstdint>
+#include <string>
 #include <vector>
 #include "include/buffer_fwd.h"