Monitoring plugin to check if a github project has new security releases available.
First, install the required dependencies:

    apt install python3-packaging

Then, create you own NRPE config file `/etc/nagios/nrpe.d/custom-github.cfg` with something like this:

    command[sometool_available_security_releases]=/usr/lib/nagios/plugins/check_github-sec-releases someuser/sometool 'sometool --version'

"someuser/sometool" is the name of the github project.

Of course, you have to ensure that the command 'sometool --version' can be executed by user nagios.
If needed, you may write a wrapper script that can be invoked by nagios with some appropriate sudoers custom config.
