chore: Correct changelog for 8.19.2 (#8918)

Generated CHANGELOG for v8.19.2 re-added some older commits. Removes
these.

Only changes from v8.19.1 are these:
https://github.com/videojs/video.js/compare/v8.19.1...v8.19.2

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Co-authored-by: André M. <34163393+amtins@users.noreply.github.com>