chore: reduce volume of logs produced by the api (#389)

## 📝 Description
Enables configuration of rbac-ee log level with env var in runtime
reduces the ammount of logs that we produce in self hosted hub api by
logging less data and only api errors
## ✅ Checklist
- [ ] I have tested this change
- [ ] This change requires documentation update

Author: hamir-suspect

ee/rbac/config/config.exs

@@ -1,7 +1,5 @@
 import Config
 
-config :logger, level: (System.get_env("LOG_LEVEL") || "debug") |> String.to_atom()
-
 # Configures Elixir's Logger
 config :logger, :console,
   format: "$time $metadata[$level] $message\n",

ee/rbac/config/runtime.exs

@@ -1,5 +1,7 @@
 import Config
 
+config :logger, level: (System.get_env("LOG_LEVEL") || "debug") |> String.to_atom()
+
 config :rbac, Rbac.Repo,
   adapter: Ecto.Adapters.Postgres,
   database: System.get_env("POSTGRES_DB_NAME") || "guard",

self_hosted_hub/pkg/logging/logging.go

@@ -12,11 +12,7 @@ func ForAgent(agent *models.Agent) *log.Entry {
 
 	return log.WithFields(
 		log.Fields{
-			"organization_id": agent.OrganizationID,
-			"agent_type":      agent.AgentTypeName,
 			"agent_id":        agent.ID,
-			"agent_name":      agent.Name,
-			"agent_version":   agent.Version,
 		},
 	)
 }