Update ci.yml

Author: Crazy-Rich-Meghan

.github/workflows/ci.yml

@@ -33,6 +33,20 @@ jobs:
         with:
           path: ./gismo/optional/${{ github.event.repository.name }}
           #token: ${{ secrets.GH_PAT }}
+          
+      # Step to install preCICE
+      - name: Install preCICE
+        if: runner.os == 'Linux' # or change based on OS
+        run: |
+          sudo apt update
+          sudo apt install build-essential cmake libeigen3-dev libxml2-dev libboost-all-dev petsc-dev python3-dev python3-numpy
+          wget https://github.com/precice/precice/archive/v3.1.2.tar.gz
+          tar -xzvf v3.1.2.tar.gz
+          cd precice-3.1.2
+          cmake --list-presets
+          cmake --preset=production # Configure using the production preset
+          make -j 10
+          sudo make install
 
       - name: "Run for ${{ matrix.os }}"
         shell: bash