Update cmake

Author: gentlegiantJGC

.github/workflows/python-unittests.yml

@@ -34,6 +34,9 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+
+    - name: Setup cmake
+      uses: jwlawson/actions-setup-cmake@v2
 
     - name: Build
       run: |