bump client version to 1.6.4 (#152)

Author: j-chmielewski

src/pages/sbom.astro

@@ -15,7 +15,7 @@ const COMPONENTS: ComponentDef[] = [
   { id: 'defguard', name: 'Core', version: '1.6.1', repo: 'defguard', status: '' },
   { id: 'defguard-proxy', name: 'Proxy', version: '1.6.1', repo: 'proxy', status: '' },
   { id: 'defguard-gateway', name: 'Gateway', version: '1.6.1', repo: 'gateway', status: '' },
-  { id: 'defguard-client', name: 'Desktop App', version: '1.6.3', repo: 'client', status: ''  },
+  { id: 'defguard-client', name: 'Desktop App', version: '1.6.4', repo: 'client', status: ''  },
   { id: 'defguard-mobile', name: 'Mobile App', version: '1.6.0', repo: 'mobile-client', status: '' },
 ];