Update extern/json subproject to latest commit

riccardodebenedictis · riccardodebenedictis · commit b58bab1eb660 · 2025-07-17T19:39:32.000+02:00
diff --git a/extern/json b/extern/json
@@ -1 +1 @@
-Subproject commit 2c83ac0dac795a57aca4a858b8e4784b151c5436
+Subproject commit 65ab59d6a1d8b5de0fbaa771593191135631d5e9
