[Debian-med-packaging] snakemake is marked for autoremoval from testing

[Debian testing autoremoval watch]

snakemake 5.20.1-1 is marked for autoremoval from testing on 2020-08-21

It (build-)depends on packages with these RC bugs:
957113: csh: ftbfs with GCC-10
957679: phyml: ftbfs with GCC-10
957681: phylip: ftbfs with GCC-10
957866: tcsh: ftbfs with GCC-10