[rust-lldb] Adapt to changes in LLDB APIs

diff --git a/src/llvm-project b/src/llvm-project
index bf94cf8631db93c464b7842bf922724583ee15a1..683d3522690b7a9d0163e7e7e6586f2b1364ed02 160000 (submodule)
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit bf94cf8631db93c464b7842bf922724583ee15a1
+Subproject commit 683d3522690b7a9d0163e7e7e6586f2b1364ed02