Fix CI: install jq/kustomize, fetch-depth 2 for deploy-production

node:20-bookworm doesn't include jq or kustomize. Also need
fetch-depth: 2 so HEAD~1 exists for turbo's change detection.

.gitea/workflows/deploy-preview.yaml

@@ -10,6 +10,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - run: apt-get update && apt-get install -y jq kustomize
+
       - run: corepack enable && corepack prepare pnpm@latest --activate
 
       - run: pnpm install --frozen-lockfile