Bug#1020244: fonts-urw-base35: A monospaced font shouldn't have ligatures

[fabian]

Hi Markus,

could you please check if replacing the OTF versions of the fonts with 
the TTF ones fixes the issue for you?

https://github.com/ArtifexSoftware/urw-base35-fonts/issues/31#issuecomment-1168348674

Thanks!

 - Fabian