ci(workflow): 将linux job的运行环境改为vpn-runner并移除build-linux步骤

.gitea/workflows/docker.yml

@@ -22,7 +22,7 @@ env:
 
 jobs:
   linux:
-    runs-on: ubuntu-latest
+    runs-on: vpn-runner
     strategy:
       matrix:
         # 使用gitea-tool-cache需要指定具体的版本号
@@ -73,7 +73,6 @@ jobs:
         run: |
           source ${{ gitea.workspace }}/deploy/.env
           go mod tidy
-          make build-linux
           make docker
           make publish-docker
           make docker-run