Auto-upgrades the CLI after a command completes, if a newer version is available.
The entire flow is rate-limited to once per day unless forced via SHOPIFY_CLI_FORCE_AUTO_UPGRADE.
Returns Promise<void>
Resolves when the upgrade attempt (or fallback warning) is complete.
Auto-upgrades the CLI after a command completes, if a newer version is available. The entire flow is rate-limited to once per day unless forced via SHOPIFY_CLI_FORCE_AUTO_UPGRADE.