Address PR feedback: remove HackTricks refs, regenerate docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Minosity-VR

docs/attack-techniques/GCP/gcp.exfiltration.backdoor-gcs-bucket.md

@@ -41,6 +41,8 @@ References:
 
 - https://cloud.google.com/storage/docs/access-control/iam
 - https://cloud.google.com/storage/docs/json_api/v1/buckets/setIamPolicy
+- https://rhinosecuritylabs.com/gcp/google-cloud-platform-gcp-bucket-enumeration/
+- https://www.praetorian.com/blog/cloud-data-exfiltration-via-gcp-storage-buckets-and-how-to-prevent-it/
 
 
 ## Instructions