Regenerate the amalgamated headers

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

single_include/nlohmann/json.hpp

@@ -7645,6 +7645,42 @@ class byte_container_with_subtype : public BinaryType
 
 NLOHMANN_JSON_NAMESPACE_END
 
+// #include <nlohmann/detail/abi_config.hpp>
+//     __ _____ _____ _____
+//  __|  |   __|     |   | |  JSON for Modern C++
+// |  |  |__   |  |  | | | |  version 3.12.0
+// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
+//
+// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
+// SPDX-License-Identifier: MIT
+
+
+
+// #include <nlohmann/detail/abi_macros.hpp>
+
+
+NLOHMANN_JSON_NAMESPACE_BEGIN
+namespace detail
+{
+
+/*!
+@brief the configuration macros that json_view.hpp reads
+
+json.hpp undefines these macros at its end (see macro_unscope.hpp), so code
+that builds on the library after it (json_view.hpp) reads them here. A macro
+is added when the view starts to depend on it. Like the
+macros, they are part of the ABI namespace, so they always match the
+basic_json they are used with.
+*/
+struct abi_config
+{
+    /// JSON_STRICT_NUL_HANDLING: a null byte is an error, not the end of input
+    static constexpr bool strict_nul_handling = JSON_STRICT_NUL_HANDLING != 0;
+};
+
+}  // namespace detail
+NLOHMANN_JSON_NAMESPACE_END
+
 // #include <nlohmann/detail/abi_macros.hpp>
 // IWYU pragma: export
 // #include <nlohmann/detail/conversions/from_json.hpp>