Add py-torchvision to environment

spack.yaml

@@ -49,6 +49,7 @@ spack:
     - py-efel@4.0.4
     - py-hbp-neuromorphic-platform@0.10.1
     - py-torch~cuda~rocm~valgrind~mkldnn~mpi~gloo+tensorpipe~onnx_ml@1.9.1 ^protobuf@:3.17.999
+    - py-torchvision
     - py-lfpy@2.2.6
     - py-elephant
     - py-frites