enable enzyme with llvm link shared on macos

Author: sgasho

src/ci/github-actions/jobs.yml

@@ -512,6 +512,8 @@ auto:
         --enable-full-tools
         --enable-sanitizers
         --enable-profiler
+        --set llvm.enzyme=true
+        --set llvm.link-shared=true
         --set rust.jemalloc
         --set rust.lto=thin
         --set rust.codegen-units=1