Sort extras

setup.py

@@ -149,21 +149,21 @@ setup(
     ],
     extras_require={
         "docs": [
-            "sphinx==1.8.5",
             "nbsphinx",
+            "sphinx==1.8.5",
         ],
         "test": [
             "coverage",
             "nbval",
-            "pytest>=5.4.0",
             "pytest-asyncio",
-            "testpath",
             "pytest-cov",
+            "pytest>=5.4.0",
+            "testpath",
             "unittest-xml-reporting==3.0.2",
         ],
         "dev": [
-            "pre-commit",
             "nbqa[toolchain]",
+            "pre-commit",
         ]
     },
     python_requires=">=3.6",