Bump minimum compiler version.

ColinH · ColinH · commit 2652d82e7728 · 2023-09-17T21:18:40.000+02:00
diff --git a/external/PEGTL b/external/PEGTL
@@ -1 +1 @@
-Subproject commit 788f223ee7c8377f78966c87d60b91188e3df33a
+Subproject commit d129c58a39bb0bd5c559feaa1590d5879ec8a8bd
