Add changelog entry for custom request timeout support

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: adamtheturtle

CHANGELOG.rst

@@ -4,6 +4,8 @@ Changelog
 Next
 ----
 
+* Add ``request_timeout_seconds`` parameter to ``VWS`` and ``CloudRecoService``, allowing customization of the request timeout. This accepts a float or a ``(connect, read)`` tuple, matching the ``requests`` library's timeout interface. The default remains 30 seconds.
+
 2025.03.10.1
 ------------