Run tests on linux too

.github/workflows/checks.yml

@@ -7,7 +7,10 @@ on:
 
 jobs:
   checks:
-    runs-on: windows-latest
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
 
@@ -17,11 +20,19 @@ jobs:
           python-version: 3.12
           cache: pip
 
-      - name: Install dependencies
+      - name: Install Linux dependencies
+        if: ${{ startsWith(matrix.os, "ubuntu") }}
         run: |
+          apt-get update && apt-get install libgl1
           python -m pip install --upgrade pip
           pip install -r requirements.txt
 
+      - name: Install Windows dependencies
+        if: ${{ startsWith(matrix.os, "windows") }}
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r win_requirements.txt
+
       - name: Test with pytest
         run: |
           python runtests.py -vv --full-trace