fix typo in release notes
fix typo in release notes

PiperOrigin-RevId: 257185017

androidx/media,androidx/media,superbderrick/ExoPlayer,androidx/media,google/ExoPlayer,ened/ExoPlayer,superbderrick/ExoPlayer,stari4ek/ExoPlayer,amzn/exoplayer-amazon-port,amzn/exoplayer-amazon-port,google/ExoPlayer,amzn/exoplayer-amazon-port,ened/ExoPlayer,google/ExoPlayer,stari4ek/ExoPlayer,superbderrick/ExoPlayer,stari4ek/ExoPlayer,ened/ExoPlayer