fix: add inactivityTimeout to reset cache method (#5788)

src/js/player.js

@@ -2066,6 +2066,7 @@ class Player extends Component {
       // we set it to zero here to ensure that if we do start actually caching
       // it, we reset it along with everything else.
       currentTime: 0,
+      inactivityTimeout: this.options_.inactivityTimeout,
       duration: NaN,
       lastVolume: 1,
       lastPlaybackRate: this.defaultPlaybackRate(),