security/zeek: Update to 3.0.11 to fix memory leaks and potential DOS:

https://github.com/zeek/zeek/releases/tag/v3.0.11

• A memory leak in multipart MIME code has potential for remote exploitation and cause for Denial of Service via resource exhaustion.

Other fixes:

• Fix incorrect RSTOS0 conn_state determinations

Reported by: Jon Siwek
MFH: 2020Q4
Security: 769a4f60-9056-4c27-89a1-1758a59a21f8