Update screen session name variable

Change the screen session name from `JAR_NAME` to `APP_NAME` in the build-deploy workflow to ensure consistency with the application naming convention.

.gitea/workflows/build-deploy.yaml

@@ -56,7 +56,7 @@ jobs:
           password: ${{ secrets.SERVER_PASSWORD }}
           port: ${{ secrets.SERVER_PORT }}
           script: |
-            screen -list | grep -q "${{ vars.JAR_NAME }}" && screen -S ${{ vars.JAR_NAME }} -X quit
+            screen -list | grep -q "${{ vars.APP_NAME }}" && screen -S ${{ vars.APP_NAME }} -X quit
       # 使用新版jar包启动应用
       - name: 使用新版jar包启动应用
         uses: appleboy/ssh-action@master