security/zeek: Update to 3.0.5

Chase latest version number that contains a simple fix not relevant
to supported versions of FreeBSD (hence no MFH).

https://raw.githubusercontent.com/zeek/zeek/3ad19762770c567edc3498b3c1f9f216f46970b0/NEWS

• Same as 3.0.4 but fixes compilation on various platforms with older compilers, for example GCC 4.8.x.