add torchsim dep to testing

Author: orionarcher

.github/workflows/testing.yml

@@ -66,7 +66,7 @@ jobs:
           python -m pip install --upgrade pip
           mkdir -p ~/.abinit/pseudos
           cp -r tests/test_data/abinit/pseudos/ONCVPSP-PBE-SR-PDv0.4 ~/.abinit/pseudos
-          uv pip install .[strict,strict-forcefields,tests,abinit,approxneb,aims]
+          uv pip install .[strict,strict-forcefields,tests,abinit,approxneb,aims,torchsim-atomistic]
           uv pip install torch-runstats torch_dftd
           uv pip install --no-deps nequip==0.5.6