Bayern Munich 1.90 and PSG 3.60 at the time of writing, it is not only Lewandowski who is injured and at least there are other players who are similar at this opportunity not to play. Bayern Munich are still favorites to win and I'm not sure, because it looks like the match will end in a draw or even PSG take this chance to win.
The odds are very clear, although I see the game more balanced than the odds represent. Bayern has to do without Lewandowski, but PSG also has two strong absences due to Corona infections: Alessandro Florenzi and Marco Verratti. But I think the loss of Lewandowski is more important for Bayern than Florenzi and Verratti for PSG.