ci(workflow): add step to get Gitea config

- Add a new step to retrieve Gitea configuration
- Print REGISTRY and DOCKER_TOKEN environment variables
- Remove redundant 'Check out code' step

.gitea/workflows/docker_build.yml

@@ -23,11 +23,13 @@ jobs:
       packages: write
 
     steps:
+      - name: 获取 Gitea 配置
+        run: |
+          echo ${ env.REGISTRY }
+          echo ${{ secrets.DOCKER_TOKEN }}
+
       - name: 检出代码
         uses: actions/checkout@v4
-        with:
-          repository: http://113.44.68.213:3000/Havoc420
-          ref: main
 
       - name: 获取分支名称
         id: branch_name