storcon: use https for pageservers (#10759)

## Problem

Storage controller uses unsecure http for pageserver API.

Closes: https://github.com/neondatabase/cloud/issues/23734
Closes: https://github.com/neondatabase/cloud/issues/24091

## Summary of changes

- Add an optional `listen_https_port` field to storage controller's Node
state and its API (RegisterNode/ListNodes/etc).
- Allow updating `listen_https_port` on node registration to gradually
add https port for all nodes.
- Add `use_https_pageserver_api` CLI option to storage controller to
enable https.
- Pageserver doesn't support https for now and always reports
`https_port=None`. This will be addressed in follow-up PR.

storage_controller/src/scheduler.rs

@@ -930,13 +930,16 @@ pub(crate) mod test_utils {
                         NodeId(i),
                         format!("httphost-{i}"),
                         80 + i as u16,
+                        None,
                         format!("pghost-{i}"),
                         5432 + i as u16,
                         az_iter
                             .next()
                             .cloned()
                             .unwrap_or(AvailabilityZone("test-az".to_string())),
-                    );
+                        false,
+                    )
+                    .unwrap();
                     node.set_availability(NodeAvailability::Active(test_utilization::simple(0, 0)));
                     assert!(node.is_available());
                     node