fix: 使用本地专用镜像 gitea-runner-php

- 创建 Dockerfile 包含 PHP + Node.js + Git + SSH
- 所有 workflow 使用本地镜像避免拉取延迟
- 需要先构建镜像: docker build -t gitea-runner-php:latest .

.gitea/workflows/deploy.yml

@@ -20,12 +20,9 @@ jobs:
     name: 部署测试环境
     runs-on: linux
     container:
-      image: alpine:latest
+      image: gitea-runner-php:latest
     if: github.ref == 'refs/heads/develop'
     steps:
-      - name: 安装依赖
-        run: apk add --no-cache openssh-client bash
-
       - name: 设置 SSH 密钥
         run: |
           mkdir -p ~/.ssh
@@ -67,12 +64,9 @@ jobs:
     name: 部署正式环境
     runs-on: linux
     container:
-      image: alpine:latest
+      image: gitea-runner-php:latest
     if: github.ref == 'refs/heads/main'
     steps:
-      - name: 安装依赖
-        run: apk add --no-cache openssh-client bash
-
       - name: 设置 SSH 密钥
         run: |
           mkdir -p ~/.ssh