Requesting SSL certificate expiration date has been improved

The method (curl call) to request the expiration date of the SSL certificate did not always work. We have improved this by using another (openssl) command.

Please note!
It is important to renew the SSL certificate prematurely to prevent downtime of, for example, the Shop Floor. Users with administrative rights will be automatically notified in MKG in a timely manner if the SSL certificate is about to expire.