Test arm64 runner

Author: Rohanjames1997

.github/workflows/build.yml

@@ -173,7 +173,7 @@ jobs:
           name: llama-bin-macos-x64.zip
 
   ubuntu-cpu-cmake:
-    runs-on: ubuntu-22.04
+    runs-on: [ubuntu-22.04, ubuntu-22.04-arm]
 
     steps:
       - name: Clone