[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

conftest.py

@@ -4,7 +4,7 @@
 from airflow_diagrams.airflow import AirflowApiTree
 
 
-@pytest.fixture()
+@pytest.fixture
 def airflow_api_tree(mocker: MockerFixture) -> AirflowApiTree:
     """
     Mock the Airflow API.

tests/test_class_ref.py

@@ -6,23 +6,23 @@
 from airflow_diagrams.class_ref import ClassRef, ClassRefMatcher, retrieve_class_refs
 
 
-@pytest.fixture()
+@pytest.fixture
 def class_ref():
     return ClassRef(
         module_path="module.operators.path",
         class_name="ClassNameOperator",
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def class_ref_mapped():
     return ClassRef(
         module_path="test.custom.module.operators.path",
         class_name="ClassNameOperator",
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def class_ref_matcher(class_ref):
     return ClassRefMatcher(
         choices=[class_ref],
@@ -32,7 +32,7 @@ def class_ref_matcher(class_ref):
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def class_ref_matcher_with_mappings(class_ref, class_ref_mapped):
     return ClassRefMatcher(
         choices=[class_ref],
@@ -43,7 +43,7 @@ def class_ref_matcher_with_mappings(class_ref, class_ref_mapped):
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def match_kwargs(class_ref):
     return dict(
         query=class_ref,

tests/test_cli.py

@@ -29,7 +29,7 @@ def strip_white_space(*strings) -> str:
     return "".join(strings).replace(" ", "").replace("\t", "").replace("\n", "")
 
 
-@pytest.fixture()
+@pytest.fixture
 def _mock_dag(airflow_api_tree):
     airflow_api_tree.dag_api.get_dags.return_value = dict(
         dags=[

tests/test_diagrams.py

@@ -14,7 +14,7 @@
 )
 
 
-@pytest.fixture()
+@pytest.fixture
 def airflow_task():
     return AirflowTask(
         class_ref=ClassRef(
@@ -27,7 +27,7 @@ def airflow_task():
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def airflow_dag(mocker):
     return AirflowDag(dag_id="foo", dag_api=mocker.ANY)