Update sa.m3u

Added link from https://github.com/iptv-org/iptv/issues/2404#issuecomment-818696747

channels/sa.m3u

@@ -85,3 +85,5 @@ https://shls-rotanaplus-prod-dub.shahid.net/out/v1/1fc6103458be480b96e6a574b00fe
 https://iptv--iptv.repl.co/Arabic/SBC
 #EXTINF:-1 tvg-id="Thikrayat Tv" tvg-name="Thikrayat Tv" tvg-country="SA" tvg-language="Arabic" tvg-logo="https://i.imgur.com/fAkScnI.png" group-title="Classic",Thikrayat TV (1080p)
 https://iptv--iptv.repl.co/Arabic/Zikrayat/
+#EXTINF:-1 tvg-country="SA" tvg-language="Arabic",Al-Resalah
+https://rotananet.hibridcdn.net/rotana/risala_abr/rotana/risala_360p/chunks.m3u8