fix: 업데이트 된 정보가 DB에 저장되지 않는 현상 수정

src/main/java/com/dpbr/dpbrbe/domain/character/usecase/UpdateInfoService.java

@@ -26,6 +26,8 @@ public SuccessCode execute(UpdateRequest request) throws IOException {
 		Character character = characterRepository.findByName(request.name()).orElseThrow(CharacterNotFoundException::new);
 		character.updateInfo(fetchCharacterInfo.execute(character.getOcid()));
 
+		characterRepository.save(character);
+
 		return UPDATE_CHARACTER_SUCCESS;
 	}
 }