Update dependency nlohmann_json to v3.12.0

Author: renovate[bot]

conanfile.py

@@ -42,7 +42,7 @@ def requirements(self):
         self.requires("pugixml/1.14")
         self.requires("cryptopp/8.9.0")
         self.requires("miniz/3.0.2")
-        self.requires("nlohmann_json/3.11.3")
+        self.requires("nlohmann_json/3.12.0")
         self.requires("vincentlaucsb-csv-parser/2.3.0")
         self.requires("uchardet/0.0.8")
         self.requires("utfcpp/4.0.4")