Install cmake on Linux

Author: certik

.github/workflows/CI.yml

@@ -35,6 +35,13 @@ jobs:
       with:
         python-version: 3.x
 
+    - name: Install CMake Linux
+      if: contains( matrix.os, 'ubuntu')
+      run: |
+          curl -O https://github.com/Kitware/CMake/releases/download/v3.16.3/cmake-3.16.3-Linux-x86_64.tar.gz
+          tar xzf cmake-3.16.3-Linux-x86_64.tar.gz
+          sudo ln -s ${HOME}/cmake-3.16.3-Linux-x86_64/bin/cmake /usr/local/bin/
+
     - name: Install GFortran Linux
       if: contains( matrix.os, 'ubuntu')
       run: |