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

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

Author: pre-commit-ci[bot]

nbconvert/exporters/qt_exporter.py

@@ -75,7 +75,7 @@ def _run_pyqtwebengine(self, html):
         except OSError:
             pass
 
-        return data 
+        return data
 
     def from_notebook_node(self, nb, resources=None, **kw):
         """Convert from notebook node."""