chore: bump submodule to v3.0.0 tag (cfb34185)

thunderbiscuit · thunderbiscuit · commit c29768e44a8e · 2026-05-29T14:34:02.000-04:00
diff --git a/bdk-ffi b/bdk-ffi
@@ -1 +1 @@
-Subproject commit f527d0aa7cb6489c2a33773ef2d72ce8c85a62c6
+Subproject commit cfb3418524d451ba8d1758f0ec27f8443740b422
