update submodule to commit `1fc2f265ff9377a37fd2c61eae9cd813a3491bea` until its main branch is fixed

llm/llama.cpp

@@ -1 +1 @@
-Subproject commit 6efb8eb30e7025b168f3fda3ff83b9b386428ad6
+Subproject commit 1fc2f265ff9377a37fd2c61eae9cd813a3491bea