bump baggageclaim
bump baggageclaim

concourse/concourse#802

Submodule src/github.com/concourse/baggageclaim 21220ef..344fe25:
  > preserve file permissions when creating volumes

Signed-off-by: JT Archie <4f9753a5161b47f990c4f321986d40dee5fdf803@gmail.com>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse