Update version to 2025.5.13

Author: versun

templates/admin/base_site.html

@@ -75,7 +75,7 @@
 <div id="footer" style="text-align: center;">
     <a href="https://rsstranslator.com" title="RSS Translator">RSS Translator</a> ·
     <a href="https://afdian.com/a/versun" title="Donate">Donate</a> ·
-    Version: <span data-version="2025.5.8">2025.5.8</span>
+    Version: <span data-version="2025.5.13">2025.5.13</span>
     <svg id="update-button" class="svg-icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"
         onclick="checkUpdate()">
         <title>Check Updates</title>