Update wsssh-server Debian package version to 1.6.5-1 to match wssshtools

- Updated package version from 1.6.1-1 to 1.6.5-1 for consistency
- Added changelog entry documenting the transition to C binary
- Maintained version alignment with wssshtools package
- Preserved all existing package functionality and dependencies

wsssh-server/debian/changelog

+wsssh-server (1.6.5-1) unstable; urgency=medium
+
+  * Version 1.6.5: Transition to C binary with SQLite database
+  * Complete rewrite from Python/PyInstaller to native C implementation
+  * Added SQLite database for persistent user management
+  * Implemented embedded web interface with user authentication
+  * Added comprehensive user management (add/edit/delete users)
+  * Security warning system for default admin credentials
+  * ASCII art banner on startup
+  * Improved performance with native C binary (no Python dependencies)
+  * Updated build system to use GCC instead of PyInstaller
+  * Added libsqlite3 and libssl runtime dependencies
+  * Updated man page with C version command line options
+  * Maintained all existing init scripts, logrotate, and service configurations
+  * Preserved backward compatibility for service management
+  * Enhanced security with proper session management
+  * Added debug options for database operations
+
+ -- Stefy Lanza <stefy@nexlab.net>  Wed, 18 Sep 2025 08:47:00 +0200
+
 wsssh-server (1.6.1-1) unstable; urgency=medium
 
   * Version 1.6.1: Major code refactoring and documentation updates