Bump SpecUtils version.

wcjohns · wcjohns · commit 7e1b5592d96a · 2022-10-17T23:49:31.000-07:00
diff --git a/external_libs/SpecUtils b/external_libs/SpecUtils
@@ -1 +1 @@
-Subproject commit 07c74d4a4889281f4ed3b281a6b0665751f33719
+Subproject commit 2d6d747786303941efc8a2bac4bad9dc3c1c28a7
