update pymc integration test code

Author: drbenvincent

causalpy/tests/test_integration_pymc_examples.py

@@ -167,14 +167,14 @@ def test_its_covid():
         .set_index("date")
     )
     treatment_time = pd.to_datetime("2020-01-01")
-    result = cp.pymc_experiments.SyntheticControl(
+    result = cp.pymc_experiments.InterruptedTimeSeries(
         df,
         treatment_time,
         formula="standardize(deaths) ~ 0 + standardize(t) + C(month) + standardize(temp)",  # noqa E501
         model=cp.pymc_models.LinearRegression(sample_kwargs=sample_kwargs),
     )
     assert isinstance(df, pd.DataFrame)
-    assert isinstance(result, cp.pymc_experiments.SyntheticControl)
+    assert isinstance(result, cp.pymc_experiments.InterruptedTimeSeries)
     assert len(result.idata.posterior.coords["chain"]) == sample_kwargs["chains"]
     assert len(result.idata.posterior.coords["draw"]) == sample_kwargs["draws"]