fix: Override BaseHook init to support Airflow v1

Aiflow v1's BaseHook has the following __init__ signature:

def __init__(self, source)

This source argument is not used by us (or anywhere else in BaseHook), so we override it to not require it.

airflow_dbt_python/hooks/dbt.py

@@ -384,6 +384,9 @@ class DbtHook(BaseHook):
     Allows for running dbt tasks and provides required configurations for each task.
     """
 
+    def __init__(self):
+        pass
+
     def get_config_factory(self, command: str) -> ConfigFactory:
         """Get a ConfigFactory given a dbt command string."""
         return ConfigFactory.from_str(command)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "airflow-dbt-python"
-version = "0.9.2"
+version = "0.9.3"
 description = "A dbt operator for Airflow that uses the dbt Python package"
 authors = ["Tomás Farías Santana <tomas@tomasfarias.dev>"]
 license = "MIT"