Update synthetic environment

.github/workflows/basic_test.yml

@@ -54,7 +54,7 @@ jobs:
         run: |
           python -m pip install pytest numpy
           python -m pip install parameterized
-          python -m pip install torch
+          python -m pip install torch torchvision
           python --version
           python -m pytest ./tests/test_synthetic.py -s
         shell: bash