rsyslog 8.1908.0 released

Today, we release rsyslog 8.1908.0. This release mostly provides bugfixes and stability fixes for many of the core functionality and main modules, as well as the testbench.

Notable changes and additions are the improved testbench plumbing, which now allows working with a port file for listener ports and capability to work with gzip-compressed files. There is also a new contributed module: mmdarwin.