Enable the test suite to use the CPU rasterizers (vulkan and egl)

.github/actions/tests/action.yml

@@ -9,10 +9,21 @@ runs:
       shell: bash
       run: just default-toolchain
     - uses: Swatinem/rust-cache@v1
-    - name: Install Dependencies
+    - name: Install Mesa Dependencies
       shell: bash
-      run: sudo apt-get install -y libwayland-dev libxkbcommon-dev # Required for winit
-    - name: Test
+      run: sudo apt install -y libegl1-mesa libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
+    - name: wgpu info
+      shell: bash
+      run: |
+        cargo install --git "https://github.com/gfx-rs/wgpu" wgpu-info
+        wgpu-info
+    - name: Test Vulkan
       shell: bash
       # TODO: Additional test runs for different targets
-      run: just test maplibre x86_64-unknown-linux-gnu
+      run: |
+        WGPU_BACKEND=vulkan just test maplibre x86_64-unknown-linux-gnu
+    - name: Test EGL
+      shell: bash
+      # TODO: Additional test runs for different targets
+      run: |
+        EGL_LOG_LEVEL=debug WGPU_BACKEND=gl just test maplibre x86_64-unknown-linux-gnu