refactor: Ensure Flask framework leverages the Flask-SQLAlchemy session (Phase II) (#26909)

tests/unit_tests/conftest.py

@@ -41,7 +41,7 @@ from superset.initialization import SupersetAppInitializer
 @pytest.fixture
 def get_session(mocker: MockFixture) -> Callable[[], Session]:
     """
-    Create an in-memory SQLite session to test models.
+    Create an in-memory SQLite db.session.to test models.
     """
     engine = create_engine("sqlite://")
 
@@ -49,7 +49,7 @@ def get_session(mocker: MockFixture) -> Callable[[], Session]:
         Session_ = sessionmaker(bind=engine)  # pylint: disable=invalid-name
         in_memory_session = Session_()
 
-        # flask calls session.remove()
+        # flask calls db.session.remove()
         in_memory_session.remove = lambda: None
 
         # patch session