more debug

Author: nkammah

.buildkite/build_pr_pipeline.yml

@@ -11,6 +11,7 @@ steps:
       - elastic/vault-secrets#v0.0.2:
           path: "secret/ci/elastic-docs/docs_preview_cleaner"
           field: "value"
+          depth: 1
   - key: "build-pr"
     label: ":hammer: Build docs PR"
     command: echo "hello" #".buildkite/scripts/build_pr.sh"