bump web
bump web

Submodule src/github.com/concourse/web af7a46cb..03e168f7:
  > Ensure teams are cleaned up in wats

Signed-off-by: Jamie Klassen <d740210502544aa0776b92978c6db85774130b86@pivotal.io>

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