Add new behavior to `bbctl` to check for updates. ## Acceptance Criteria - Compare the local versions client version and compilation date against the latest release on repo1 and the current date. - If the local version is on an older _minor_ version, warn the user and provide relevant update instructions. - If the local version is on a version many _minor_ versions older than the most up to date, increase the severity of the message. - If the local version is a _major_ version out of date than the upstream version, raise lots of alarms and strongly encourage the user to update. - If the local version is some threshold (90d?) older the the latest release of `bbctl`, warn the user that their version is out of date. - This check should be configured to be run at startup _by default_ - Setting a configuration flag or environment variable should allow the check to be disabled - ~~Add an optional configuration that enables auto-updating and automatically updates the local `bbctl` binary if a new version is available. Use the logic implemented in https://repo1.dso.mil/big-bang/product/packages/bbctl/-/issues/294.~~ - Removed and rescoped to be part of https://repo1.dso.mil/groups/big-bang/product/packages/-/epics/20 - If there is no internet connection available, gracefully log the error and continue execution.