fix: CD workflow에서 환경변수가 제대로 설정되지 않던 문제 해결

.github/workflows/Continuous Delivery.yml

@@ -26,12 +26,14 @@ jobs:
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
 
+      - name: Set env for Gradle build
+        run: |
+          echo DB_URL=${{ secrets.DB_URL }} >> $GITHUB_ENV
+          echo DB_USER=${{ secrets.DB_USR }} >> $GITHUB_ENV
+          echo DB_PASSWORD=${{ secrets.DB_PWD }} >> $GITHUB_ENV
+
       - name: Execute Gradle build
         run: ./gradlew build
-        env:
-          DB_URL: ${{ secrets.DB_URL }}
-          DB_USER: ${{ secrets.DB_USR }}
-          DB_PASSWORD: ${{ secrets.DB_PWD }}
 
       - name: Login to docker-hub
         uses: docker/login-action@v3