fix: fix healthcheck

Author: toychip

.github/workflows/cd-app-develop.yml

@@ -3,7 +3,7 @@ name: Deploy to NCP
 on:
   push:
     branches:
-      - develop
+      - docs/swagger
 
 jobs:
   build-deploy:

noweekend-core/core-api/src/main/kotlin/noweekend/core/api/controller/HealthController.kt

@@ -9,6 +9,7 @@ import org.springframework.web.bind.annotation.RestController
 class HealthController {
     @GetMapping("/health")
     fun health(): ResponseEntity<*> {
-        return ResponseEntity.status(HttpStatus.OK).build<Any>()
+        return ResponseEntity.status(HttpStatus.OK)
+            .body("ok")
     }
 }