Use secure client based on url scheme
Use secure client based on url scheme

* respect correct env var for bbs cert

[#103964424]

Signed-off-by: James Myers <44cbd4b2784f900a6fede6279d0b7fdcbfaa89f5@pivotal.io>

pivotal-cf-experimental/veritas,pivotal-cf-experimental/veritas,pivotal-cf-experimental/veritas,pivotal-cf-experimental/veritas