update logo for channels

[TechComet]

Hi,

in file https://github.com/iptv-org/iptv/blob/master/channels/sa.m3u

replace
https://rotana.net/assets/themes/TriTheme/images/channels/
to
https://rotana.net/triAssets/uploads/2020/11/

[MapGuy11]

Please make PR thanks