Update changelog.md

updated date to today

Author: TomJaeger

docs/installation/changelog.md

@@ -9,7 +9,7 @@
 # ExpressionEngine v7 Change Log
 
 ## Version 7.3.13
-(Release: October 12, 2023)
+(Release: October 11, 2023)
 
 - **Contributors** 🙌
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