This change deploys a small Squid-based proxy into the `dex` namespace in our integration test environment. This lets us use the cluster-local DNS name (`http://dex.dex.svc.cluster.local/dex`) as the OIDC issuer. It will make generating certificates easier, and most importantly it will mean that our CLI can see Dex at the same name/URL as the supervisor running inside the cluster.
Signed-off-by: Matt Moyer <moyerm@vmware.com>