[RFE] Trousseau to check for latest images version and print a log message

[romdalf]

-->Is it linked to a user story? (use the "#" to tag the user story)

#50

-->What do we want to build?

an API call to the ghcr.io to get the latest the latest version available

-->Why do we want to build it?

provide platform maintener knowledge of a new version being publish

-->How do we want to design it?

a API call to ghcr.io to compare hash between running version vs latest available release

Note: the operator efforts will solve this but only if users are leveraging the operator