updated _parse_url for new public mega file link format

https://board.jdownloader.org/showthread.php?t=83745
Status Job ID Name Coverage
  Build
failed #861
build

 
  Test
skipped #863
allowed to fail
code_quality
skipped #862
test
 
Name Stage Failure
failed
build Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log