fix : CI 오류 해결 시도

Author: ys0221

.github/workflows/main.yml

@@ -133,7 +133,7 @@ jobs:
           MAIL_USERNAME: ${{ secrets.MAIL_USERNAME }}
           MAIL_PASSWORD: ${{ secrets.MAIL_PASSWORD }}
           SECRET_KEY: ${{ secrets.SECRET_KEY }}
-          custom.jwt.secret: ${{ secrets.JWT_SECRET_KEY }}
+          custom.jwt.secret: ${{ secrets.SECRET_KEY }}
 
         run: ./gradlew test --info