fix(code-review.yml): 코드 리뷰 comment 수정

.github/workflows/code-review.yml

@@ -83,5 +83,5 @@ jobs:
               issue_number: context.issue.number,
               owner: context.repo.owner,
               repo: context.repo.repo,
-              body: `Code Review Response:\n\n${response}\n\nDiff:\n\`\`\`diff\n${diff}\n\`\`\``
+              body: `${response}`
             });