Merge branch 'develop' into claude/abi-tag-strict-nul-handling

Resolve the conflict with #5344, which added the _psp ABI tag: _snul now
follows _psp, NLOHMANN_JSON_ABI_TAGS_CONCAT takes six tags, and
nlohmann_json.natvis and the amalgamation are regenerated.

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

tests/abi/config/default.cpp

@@ -36,6 +36,10 @@ TEST_CASE("default namespace")
         expected += "_bics";
 #endif
 
+#if JSON_PRECISE_STREAM_POSITION
+        expected += "_psp";
+#endif
+
 #if JSON_STRICT_NUL_HANDLING
         expected += "_snul";
 #endif