add: set up environment

.github/workflows/deploy.yml

@@ -21,6 +21,12 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
 
+      # 환경 변수 설정
+      - name: Set up Environment
+        run: |
+          touch application.yml
+          echo "${{ secrets.APPLICATION_YML }}" > ./application.yml
+
       # 빌드 권한 부여
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew