Bump engines/shopify_app from `2d94273` to `129cea9`
Bump engines/shopify_app from `2d94273` to `129cea9`

Bumps [engines/shopify_app](https://github.com/Shopify/shopify_app) from `2d94273` to `129cea9`.
- [Release notes](https://github.com/Shopify/shopify_app/releases)
- [Commits](https://github.com/Shopify/shopify_app/compare/2d9427359a2e93c87596729b4233938bff13c5a8...129cea927861a21be2f5d22f6872fc1ff3658667)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails