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

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

Author: pre-commit-ci[bot]

tests/test_plot_dependency.py

@@ -2,7 +2,11 @@
 import unittest
 from time import sleep
 
-from executorlib import SingleNodeExecutor, SlurmAllocationExecutor, SlurmSubmissionExecutor
+from executorlib import (
+    SingleNodeExecutor,
+    SlurmAllocationExecutor,
+    SlurmSubmissionExecutor,
+)
 from executorlib.standalone.plot import generate_nodes_and_edges
 from executorlib.standalone.serialize import cloudpickle_register