chore: fix EOL date (#6765)

Signed-off-by: zirain <[email protected]>

Author: zirain

site/hugo.toml

@@ -242,7 +242,7 @@ enable = true
 [[params.versions]]
   version = "v1.5"
   url = "/v1.5"
-  eol = "2025-02-13"
+  eol = "2026-02-13"
 
 [[params.versions]]
   version = "v1.4"