doc: add missing entry in v6 changelog table

This adds an anchor for v6.10.0 in the LTS column.

PR-URL: #11534
Reviewed-By: Evan Lucas <[email protected]>
Reviewed-By: Myles Borins <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: lpinca

doc/changelogs/CHANGELOG_V6.md

@@ -7,6 +7,7 @@
 </tr>
 <tr>
 <td valign="top">
+<a href="#6.10.0">6.10.0</a><br/>
 <a href="#6.9.5">6.9.5</a><br/>
 <a href="#6.9.4">6.9.4</a><br/>
 <a href="#6.9.3">6.9.3</a><br/>