ci: use built-in repository token

.gitea/workflows/deploy.yml

@@ -9,7 +9,7 @@ concurrency:
 jobs:
   verify-deploy:
     runs-on: ubuntu-latest
-    container: { image: docker:27-cli }
+    container: { image: "docker:27-cli" }
     timeout-minutes: 20
     env:
       SOURCE_SERVER: ${{ gitea.server_url }}
@@ -19,7 +19,7 @@ jobs:
       API_BASE_URL: ${{ vars.API_BASE_URL || 'http://47.76.92.159:18082' }}
     steps:
       - name: Fetch exact revision
-        env: { SOURCE_TOKEN: "${{ secrets.GITEA_TOKEN }}" }
+        env: { SOURCE_TOKEN: "${{ secrets.GITEA_TOKEN || gitea.token }}" }
         run: |
           set -eu
           apk add --no-cache python3 nodejs curl
@@ -46,4 +46,3 @@ jobs:
           for i in 1 2 3 4 5 6; do curl -fsS "http://127.0.0.1:$DEPLOY_PORT/health" && exit 0; sleep 2; done
           docker logs rice-pk-xhs-preview
           exit 1
-