Add BOSH_TARGET, BOSH_LITE_DISK_SIZE, BRATS_BRANCH to credential whitelist
Add BOSH_TARGET, BOSH_LITE_DISK_SIZE, BRATS_BRANCH to credential whitelist

[#120319485]

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci