ci: checkout from runner repository cache

.gitea/workflows/build-production-docker.yml

@@ -12,11 +12,16 @@ jobs:
     env:
       IMAGE_NAME: eryao-backend
       IMAGE_SIZE_LIMIT_BYTES: 500000000
+      RUNNER_REPO_CACHE: /home/zl/Code/eryao
     steps:
       - name: Check out repository
         run: |
           set -euo pipefail
-          git clone --depth 1 --branch "${GITHUB_REF_NAME:-main}" "ssh://git@www.qzselfz.cloud:2222/${GITHUB_REPOSITORY}.git" .
+          git -C "${RUNNER_REPO_CACHE}" fetch --no-tags origin "${GITHUB_SHA}"
+          git init .
+          git remote add origin "${RUNNER_REPO_CACHE}/.git"
+          git fetch --no-tags --depth=1 origin "${GITHUB_SHA}"
+          git checkout --detach FETCH_HEAD
 
       - name: Validate ECR configuration
         run: |