Rollup merge of #65220 - tlively:update-llvm-for-emscripten-exceptions, r=nikic

Update LLVM for Emscripten exception handling support

Updates LLVM to pick up the cherry-picked support for correctly
handling exception handling with aggregates passed by value. This will
be necessary to continue to support Emscripten's exception handling
once we switch using Emscripten's LLVM backend. See #63649.

diff --git a/src/llvm-project b/src/llvm-project
index 8473db5f2af9dc36aaf6f9b053fcc2e0e6ac8026..14a3b123074e066d64a99886941473058e52197d 160000 (submodule)
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 8473db5f2af9dc36aaf6f9b053fcc2e0e6ac8026
+Subproject commit 14a3b123074e066d64a99886941473058e52197d