Check cmake version in ci, down't seem to use python provided version

Author: ptheywood

.github/workflows/Manylinux_2_28.yml

@@ -105,6 +105,11 @@ jobs:
       run: |
         python${{env.PYTHON}} -m pip install 'cmake<4.0' 
 
+    - name: Check cmake version
+      run: |
+        cmake --version
+        which cmake
+
     - name: Install Visualisation Dependencies (EL 8)
       if: ${{ env.VISUALISATION == 'ON' }}
       run: |