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

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Author: pre-commit-ci[bot]

source/specifications/core-metadata.rst

@@ -1067,7 +1067,7 @@ History
 
   - Added the ``Import-Name`` field.
   - Added the ``Import-Namespace`` field.
-  
+
 - October 2025: Clarified that ``License-Expression`` applies to the containing
   distribution file and not the project itself.