fix CI

Author: sebcrozet

.github/workflows/ci.yaml

@@ -145,7 +145,11 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Install dependencies
-        run: sudo apt-get update; sudo apt-get install --no-install-recommends build-essential curl wget file libssl-dev
+        run: |
+          sudo apt-get update
+          sudo apt-get install --no-install-recommends -y \
+            build-essential curl wget file libssl-dev \
+            libegl1-mesa-dev libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
 
       - name: Retrieve Cache for Slang
         uses: actions/cache/restore@v4
@@ -159,4 +163,4 @@ jobs:
           sweep-cache: true
       - name: Run Cargo Tests
         run: |
-          SLANG_DIR=$SLANG_DIR cargo test --verbose
+          SLANG_DIR=$SLANG_DIR LIBGL_ALWAYS_SOFTWARE=1 cargo test --verbose