v0.4.84

Changelog

• 1b52b15 Omit add-on state from Upstash update payload when declining enablement (#5084)
• 0057ac4 Drop the v1 create path from fly mpg create (#5082)
• 3092376 Move fly launch off the v1 Managed Postgres API (#5076)
• def4895 Add --container and --no-container to fly machine exec (#5077)