refactor : 도메인 의미가 보이도록 메서드 이름 변경

#1461

Author: java-saeng

backend/src/main/java/wooteco/prolog/roadmap/ui/RoadmapController.java

@@ -14,7 +14,7 @@ public class RoadmapController {
     private final RoadMapService roadMapService;
 
     @GetMapping("/roadmaps")
-    public KeywordsResponse findKeywords(@RequestParam final Long curriculumId) {
+    public KeywordsResponse findRoadMapKeyword(@RequestParam final Long curriculumId) {
         return roadMapService.findAllKeywords(curriculumId);
     }
 }