fix(ingress): fix People backend service name; add find route

The People backend service is named people-backend (not people) in the
desk chart. Add a route for find-backend to front the future OpenSearch
Dashboards service.

base/ingress/pingora-config.yaml

@@ -54,7 +54,11 @@ data:
 
     [[routes]]
     host_prefix = "people"
-    backend     = "http://people.lasuite.svc.cluster.local:8000"
+    backend     = "http://people-backend.lasuite.svc.cluster.local:8000"
+
+    [[routes]]
+    host_prefix = "find"
+    backend     = "http://find-backend.lasuite.svc.cluster.local:8000"
 
     [[routes]]
     host_prefix = "src"