Heat: wait condition: allow insecure HTTPS url

If  `heat_wait_condition_server_url` config in heat.conf starts
with HTTPS but doesn't have a valid HTTPS certificate, the Tempest
test will fail because curl will complain. This patch makes curl
happy by allowing self-signed certificate and the like.

Change-Id: I64d8f88c229de58572532fd6f0e60082b8a8af9f
Closes-Bug: #1512694
1 file changed