Fix release date

Author: jbern0rd

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file.
 
-## [[8.3.0]](https://github.com/iExecBlockchainComputing/iexec-result-proxy/releases/tag/v8.3.0) 20234-01-10
+## [[8.3.0]](https://github.com/iExecBlockchainComputing/iexec-result-proxy/releases/tag/v8.3.0) 2024-01-10
 
 ### New Features