Support for zeek 4.2

[ottobackwards]

Summary of the issue

Before 5.0 releases there should be support for the last 4.x feature release

Expected behavior

...

Steps to reproduce

...

Where applicable, consider providing a patch that uses the end to end testing environment.

Logs, errors, etc.

...

Your environment

• Version of Zeek
• Version or commit hash of the zeek-kafka package
• Operating System and version

[JonZeolla]

Added in 009c6cdf1e69fd7cbe0038e42a84dcc48ac72fce