Remove RENDITION_PREFIX from push URL

[AlexKordic]

Change rendition URL from:

s3+https://GOOG:pass@storage.googleapis.com/alexk-dms-upload-test/bbb/segmented/tr_rend_+_bbfaegff_428x240/stream.m3u8

into:

s3+https://GOOG:pass@storage.googleapis.com/alexk-dms-upload-test/bbb/segmented/_bbfaegff_428x240/stream.m3u8

[codecov]

Codecov Report

Merging #56 (bb3e69b) into main (2f85354) will decrease coverage by 0.09891%.
The diff coverage is 0.00000%.

@@                 Coverage Diff                 @@
##                main         #56         +/-   ##
===================================================
- Coverage   34.88152%   34.78261%   -0.09892%     
===================================================
  Files             17          17                 
  Lines           1055        1058          +3     
===================================================
  Hits             368         368                 
- Misses           642         645          +3     
  Partials          45          45                 

Impacted Files	Coverage Δ
handlers/misttriggers/live_tracklist.go	0.00000% <0.00000%> (ø)

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Impacted Files	Coverage Δ
handlers/misttriggers/live_tracklist.go	0.00000% <0.00000%> (ø)