Install and verify CMake 3 in CI workflow

.github/workflows/tests.yml

@@ -145,6 +145,25 @@ jobs:
         os: ${{ fromJSON(needs.define-matrix.outputs.os) }}
       fail-fast: false
     steps:
+
+      - name: "Install CMake 3"
+        if: ${{ startsWith(matrix.os, 'macos-13') }}
+        run: |
+          curl -o cmake.tgz -#fSL https://github.com/Kitware/CMake/releases/download/v3.31.8/cmake-3.31.8-macos-universal.tar.gz
+          mkdir -p /opt/cmake
+          tar -xzf cmake.tgz -C /opt/cmake --strip-components 1
+          echo "/opt/cmake/CMake.app/Contents/bin" >> $GITHUB_PATH
+
+      - name: "Test CMake 3"
+        if: ${{ startsWith(matrix.os, 'macos-13') }}
+        run: |
+          if [ "$(which cmake)" != "/opt/cmake/CMake.app/Contents/bin/cmake" ]; then
+            echo "CMake path: $(which cmake)"
+            exit 1
+          else
+            echo "Good cmake"
+          fi
+          
       - name: "Update runner packages"
         if: ${{ startsWith(matrix.os, 'ubuntu-') }}
         run: sudo apt-get update && sudo apt-get install -y ca-certificates