ci: skip cmake install if already present

Author: xz-dev

.github/workflows/test.yaml

@@ -28,7 +28,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Install cmake
-        run: sudo apt-get install -y cmake
+        run: cmake --version || (sudo apt-get update && sudo apt-get install -y cmake)
       - name: Set up Rust
         uses: dtolnay/rust-toolchain@stable
         with:
@@ -45,7 +45,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install cmake
-        run: sudo apt-get install -y cmake
+        run: cmake --version || (sudo apt-get update && sudo apt-get install -y cmake)
 
       - name: Set up Rust
         uses: dtolnay/rust-toolchain@stable