[video_player]Sample Videos Link Fix

[rubberbird]

Updated the 404 issues on the video link

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[rubberbird]

I signed it!

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CLAs look good, thanks!

[ened]

Could you please also update packages/video_player/example/lib/main.dart to point to the correct file? Perhaps add a constant for this.

[bparrishMines]

Hi @rubberbird,

I believe this was fix with PR #690. Closing this for now.