bump baggageclaim
bump baggageclaim

[finishes #104097858]

Submodule src/github.com/concourse/baggageclaim 9f8085e..f6cebc7:
  > heartbeating short-circuits when volume disappears

CloudCredo/concourse,cjcjameson/concourse,longnguyen11288/concourse,CloudCredo/concourse,cjcjameson/concourse,concourse/concourse,concourse/concourse,zachgersh/concourse,concourse/concourse,longnguyen11288/concourse,longnguyen11288/concourse,CloudCredo/concourse,zachgersh/concourse,cjcjameson/concourse,concourse/concourse,zachgersh/concourse,concourse/concourse