Move test_smc into smc

Author: Armavica

.github/workflows/tests.yml

@@ -149,7 +149,7 @@ jobs:
         test-subset:
           - pymc/tests/variational/test_approximations.py pymc/tests/variational/test_callbacks.py pymc/tests/variational/test_inference.py pymc/tests/variational/test_opvi.py pymc/tests/test_initial_point.py
           - pymc/tests/test_model.py pymc/tests/step_methods/test_compound.py pymc/tests/step_methods/hmc/test_hmc.py
-          - pymc/tests/gp/test_cov.py pymc/tests/gp/test_gp.py pymc/tests/gp/test_mean.py pymc/tests/gp/test_util.py pymc/tests/ode/test_ode.py pymc/tests/ode/test_utils.py pymc/tests/test_smc.py pymc/tests/test_parallel_sampling.py
+          - pymc/tests/gp/test_cov.py pymc/tests/gp/test_gp.py pymc/tests/gp/test_mean.py pymc/tests/gp/test_util.py pymc/tests/ode/test_ode.py pymc/tests/ode/test_utils.py pymc/tests/smc/test_smc.py pymc/tests/test_parallel_sampling.py
           - pymc/tests/test_sampling.py pymc/tests/step_methods/test_metropolis.py pymc/tests/step_methods/test_slicer.py pymc/tests/step_methods/hmc/test_nuts.py
 
       fail-fast: false