Update extern/json subproject to latest commit

riccardodebenedictis · riccardodebenedictis · commit aff0681d7e82 · 2025-10-31T15:40:23.000+01:00
diff --git a/extern/json b/extern/json
@@ -1 +1 @@
-Subproject commit 4a38e92bf31d57cc4b6d1a202c3d98e79f2982bb
+Subproject commit 0216df705d6ded4f00b468170ca5b2b3e591bcaa
