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

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Author: pre-commit-ci[bot]

doc/whats-new.rst

@@ -31,7 +31,7 @@ Breaking changes
 Deprecations
 ~~~~~~~~~~~~
 - The `dt.weekday_name` parameter wasn't functional on modern pandas versions and has been removed. (:issue:`8610`, :pull:`8664`)
-  By `Sam Coleman <https://github.com/nameloCmaS>`_. 
+  By `Sam Coleman <https://github.com/nameloCmaS>`_.
 
 
 Bug fixes
@@ -42,7 +42,7 @@ Documentation
 ~~~~~~~~~~~~~
 - Fix `variables` arg typo in `Dataset.sortby()` docstring
  (:issue:`8663`, :pull:`8670`)
-  By `Sam Coleman <https://github.com/nameloCmaS>`_.  
+  By `Sam Coleman <https://github.com/nameloCmaS>`_.
 
 Internal Changes
 ~~~~~~~~~~~~~~~~