add release notes for cert bug
add release notes for cert bug

Signed-off-by: Joshua Winters <3dd3a5216811ba233723a4612ec3a917850b715d@pivotal.io>
Co-authored-by: Clara Fu <d5c8bdbc15689555c92563892e959c79b3fc425f@pivotal.io>

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