Description

Add a mechanism to best efforts get the latest version and report back to the user if there is a newer version of Trivy than the one that they're using.

The version check should not be performed when the user is using the -q/--quiet or --no-notices flags.

https://api.trivy.cloud/check is available to return the payload with latest version and any interesting announcements.

The check process must not be inline with the normal flow of Trivy and should attempt to get the version during running and print the details to stderr at the end of the run if available.