Update spirit from develop

boost-commitbot · boost-commitbot · commit 2ea129d863c5 · 2025-05-07T23:35:07.000Z
diff --git a/libs/spirit b/libs/spirit
@@ -1 +1 @@
-Subproject commit dcaded05c84db5ecea6485178f77e825df5352f1
+Subproject commit c60664c4b325b44ab94e35c5349860b111defed3
