Fix "include what you use" issue

Victor Hugo Vianna Silva · Victor Hugo Vianna Silva · commit bc9f4df9da0c · 2025-11-07T15:52:11.000Z
Fix IWYU for istreambuf_iterator.
diff --git a/src/lib_json/json_reader.cpp b/src/lib_json/json_reader.cpp
@@ -16,6 +16,7 @@
 #include <cstring>
 #include <iostream>
 #include <istream>
+#include <iterator>
 #include <limits>
 #include <memory>
 #include <set>
