docs/website/download.html: fix latest releases dates

The website download page was updated for the latest releases of
2025.{02,05,08} in [1], but the column "Latest release date" wasn't
updated.

Moreover, indicate that 2025.05.3 is the EOL stable release.

[1] e5501d7b1a98c1e760f7569472d01491b21ffefa

Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

docs/website/download.html

@@ -54,7 +54,7 @@
               Changelog
             </a>
           </td>
-          <td>2025-09-07</td>
+          <td>2025-10-11</td>
           <td>
             <a href="/downloads/buildroot-2025.08.1.tar.gz">
               <img src="images/zip.png" width="24" alt="">
@@ -70,7 +70,7 @@
             <a href="/downloads/buildroot-2025.08.1.tar.xz.sign">[PGP sig]</a>
           </td>
         </tr>
-          <th>Stable</th>
+          <th>Stable (EOL)</th>
           <th>2025.05.x</th>
           <td>September 2025</td>
           <td>
@@ -79,7 +79,7 @@
               Changelog
             </a>
           </td>
-          <td>2025-09-09</td>
+          <td>2025-10-11</td>
           <td>
             <a href="/downloads/buildroot-2025.05.3.tar.gz">
               <img src="images/zip.png" width="24" alt="">
@@ -105,7 +105,7 @@
               Changelog
             </a>
           </td>
-          <td>2025-09-09</td>
+          <td>2025-10-11</td>
           <td>
             <a href="/downloads/buildroot-2025.02.7.tar.gz">
               <img src="images/zip.png" width="24" alt="">