[CI] Bump Linux Contaienr LLVM to 21.1.0 (#155658)

boomanaiden154 · web-flow · commit cb0ce1e4d1a3 · 2025-08-27T16:36:02.000-07:00
Now that a new release has come out, we should bump the version of the
toolchain in the container to keep up to date.
diff --git a/.github/workflows/containers/github-action-ci/Dockerfile b/.github/workflows/containers/github-action-ci/Dockerfile
@@ -2,7 +2,7 @@ FROM docker.io/library/ubuntu:24.04 as base
 ENV LLVM_SYSROOT=/opt/llvm
 
 FROM base as stage1-toolchain
-ENV LLVM_VERSION=20.1.8
+ENV LLVM_VERSION=21.1.0
 
 RUN apt-get update && \
     apt-get install -y \
