security/zeek: Update to 7.0.2

https://github.com/zeek/zeek/releases/tag/v7.0.2

This release fixes the following potential DoS vulnerability:

• The POP3 parser has been hardened to avoid unbounded state growth in the face of one-sided traffic capture or when enabled for non-POP3 traffic.

This release fixes the following bugs:

• Support for SASL+SPNEGO+NTLMSSP was added to the LDAP analyzer.
• Telemetry callbacks are now handled via Zeek instead of depending on the prometehus-cpp library to handle them.

Reported by: Tim Wojtulewicz