Update.

ColinH · ColinH · commit 3be84ccccba4 · 2021-04-07T11:48:09.000+02:00
diff --git a/external/json b/external/json
@@ -1 +1 @@
-Subproject commit 64a36d19f0feec475c3313a694e00945062b1024
+Subproject commit 79d8ea6268c0a6c2b15abea8bb9751927014d7ec
