feat(ci): deploy job增加独立concurrency，部署排队不打断

- deploy-staging: 同分支部署排队，cancel-in-progress: false
- deploy-production: tag部署排队，cancel-in-progress: false

避免新push打断正在进行的部署，保证部署完整性和健康检查有效性。

.gitea/workflows/ci-build.yml

@@ -159,6 +159,9 @@ jobs:
     name: Deploy Staging (Watchtower auto-deploy)
     runs-on: saas
     timeout-minutes: 15
+    concurrency:
+      group: deploy-staging-${{ gitea.ref }}
+      cancel-in-progress: false
     needs:
     - build-staging
     if: github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'develop')
@@ -594,6 +597,9 @@ jobs:
     name: Deploy Production
     runs-on: saas
     timeout-minutes: 30
+    concurrency:
+      group: deploy-production-${{ gitea.ref }}
+      cancel-in-progress: false
     if: startsWith(github.ref, 'refs/tags/v')
     needs:
     - build-production