Add ping endpoint for health check

docker-compose.yml

@@ -10,7 +10,7 @@ services:
     networks:
       - sloth-net
     healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://localhost:3001/api/providers"]
+      test: ["CMD", "wget", "-qO-", "http://localhost:3001/api/ping"]
       interval: 30s
       timeout: 5s
       retries: 3