Update ci.yml

Author: dc-mak

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
 
     - name: System dependencies (ubuntu)
       run: |
-        sudo apt-get install opam python3 clang-15 opam libclang-15-dev llvm-15-dev
+        sudo apt-get install opam python3 clang-15 opam libclang-15-dev cmake llvm-15-dev
 
     - name: Restore cached opam
       id: cache-opam-restore