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

pre-commit-ci[bot] · pre-commit-ci[bot] · commit 46104f278354 · 2023-03-25T16:19:15.000Z
for more information, see https://pre-commit.ci
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -7,7 +7,7 @@ Unreleased
 Version 2.3.1
 -------------
 
-Released 2023-03-25 
+Released 2023-03-25
 
 - Fix HPKE sample. `#362 <https://github.com/dajiaji/python-cwt/pull/362>`__
 - Update dependencies.
