[MODIFY] prod와 dev가 같은 AWS key를 사용하도록 변경 (#496)

Author: kseysh

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

@@ -40,8 +40,8 @@ jobs:
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2
         with:
-          aws-access-key-id: ${{ secrets.DEV_AWS_ACCESS_ID }}
-          aws-secret-access-key: ${{ secrets.DEV_AWS_SECRET_KEY }}
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_KEY }}
           aws-region: ap-northeast-2
 
       - name: 🐘Gradle Build