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

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

Author: pre-commit-ci[bot]

setup.py

@@ -48,10 +48,10 @@ def environment_dependencies(obj, dependencies=None):
     include_package_data=True,
     install_requires=install_requires,
     extras_require={
-        'jupyter-server-proxy': [
-            'jupyter-server-proxy',
+        "jupyter-server-proxy": [
+            "jupyter-server-proxy",
         ],
-        },
+    },
     python_requires=">=3.6",
     packages=["dask_mpi"],
     long_description=long_description,