Update rust.yml

Author: gkorland

.github/workflows/rust.yml

@@ -1,4 +1,4 @@
-name: macos
+name: CI
 
 on:
   push:
@@ -33,7 +33,7 @@ jobs:
       with:
         usesh: true
         sync: rsync
-        prepare: pkg install -y bash gmake rust git
+        prepare: pkg install -y bash gmake rust git clang
         run: |
           git submodule sync
           git submodule update --init