[SECURITY] Fedora 39 Update: espeak-ng-1.51.1-6.fc39

The eSpeak NG (Next Generation) Text-to-Speech program is an open source spee ch synthesizer that supports over 70 languages. It is based on the eSpeak engine created by Jonathan Duddington. It uses spectral formant synthesis by default which sounds robotic, but can be configured to use Klatt formant synthesis or MBROLA to give it a more natural sound.