[libc++][CI] Updates the version number of the latest release.

mordante · mordante · commit 400518526849 · 2024-03-14T17:46:14.000+01:00
diff --git a/libcxx/utils/ci/docker-compose.yml b/libcxx/utils/ci/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3.7'
 
 x-versions: &compiler_versions
   GCC_LATEST_VERSION: 13
-  LLVM_HEAD_VERSION: 18
+  LLVM_HEAD_VERSION: 19
 
 services:
   buildkite-builder:
