Bump pyyaml from 5.1.1 to 5.1.2 (#447)
Bump pyyaml from 5.1.1 to 5.1.2 (#447)

Bump pyyaml from 5.1.1 to 5.1.2
jazzband/website,jazzband/website,jazzband/site,jazzband/jazzband-site,jazzband/site,jazzband/website,jazzband/jazzband-site,jazzband/website