Update ci.yml

Author: vboutrou

.github/workflows/ci.yml

@@ -27,12 +27,12 @@ jobs:
       - uses: actions/checkout@v4
 
       # Sets up a display server
-      - name: Start display server
-        if: ${{ always() }}
-        run: |
-          sudo apt-get install xvfb
-          Xvfb :99 &
-          echo "DISPLAY=:99" >> $GITHUB_ENV
+      #- name: Start display server
+      #  if: ${{ always() }}
+      #  run: |
+      #    sudo apt-get install xvfb
+      #    Xvfb :99 &
+      #    echo "DISPLAY=:99" >> $GITHUB_ENV
 
       # Sets up MATLAB
       - name: Setup MATLAB