Integrate LLVM at llvm/llvm-project@6caf3fb81786
Updates LLVM usage to match
[6caf3fb81786](https://github.com/llvm/llvm-project/commit/6caf3fb81786)
PiperOrigin-RevId: 333820612
diff --git a/SUBMODULE_VERSIONS b/SUBMODULE_VERSIONS
index 47784d4..9dda631 100644
--- a/SUBMODULE_VERSIONS
+++ b/SUBMODULE_VERSIONS
@@ -4,7 +4,7 @@
a5d9d0f7d368054fd1691aedf1db4116efcc233e third_party/flatbuffers
4fb0ff7069bd88ee85902f4d0bb62794e5f6d021 third_party/flatcc
f2fb48c3b3d79a75a88a99fba6576b25d42ec528 third_party/googletest
-81a408808f668c74ada3a1ed3d55f1feef334872 third_party/llvm-project
+6caf3fb8178699ac14fb94fef99aaf1cf297264f third_party/llvm-project
17b12a4481daa150e2d1ea3ada086b551b856707 third_party/marl
08c41f61f4f5f17728c9e0f48640eaa32588b63b third_party/mlir-emitc
d8c7ee00a687ac369e62e2032514a93a9b413502 third_party/pybind11