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

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

Author: pre-commit-ci[bot]

patsy/util.py

@@ -44,7 +44,10 @@
 else:
     have_pandas = True
     import packaging.version
-    PANDAS3 = packaging.version.parse(pandas.__version__) > packaging.version.parse("2.99")
+
+    PANDAS3 = packaging.version.parse(pandas.__version__) > packaging.version.parse(
+        "2.99"
+    )
 
 # Pandas versions < 0.9.0 don't have Categorical
 # Can drop this guard whenever we drop support for such older versions of