Generates a message to remind the user to update the CLI.
For major version bumps, appends a link to the GitHub release notes so users
can review breaking changes before deciding to upgrade.
Parameters
version: string
The version to update to.
isMajor: boolean = false
Whether the version bump is a major version change.
Generates a message to remind the user to update the CLI. For major version bumps, appends a link to the GitHub release notes so users can review breaking changes before deciding to upgrade.