Documentation: Update release date in changelog

Author: ywarnier

public/documentation/changelog.html

@@ -19,7 +19,7 @@
 <div class="version" aria-label="2.0">
     <a id="2.0-alpha.1"></a>
 
-    <h1>Chamilo 2.0 alpha 1 - Babaorum,  2024-07-18</h1>
+    <h1>Chamilo 2.0 alpha 1 - Babaorum,  2024-07-19</h1>
     <h3>Release notes - summary</h3>
     <p>
     Chamilo 2.0 will be a major release, a new branch for the Chamilo software.