Bump engines/shopify_app from `51321aa` to `f0af4cb`
Bump engines/shopify_app from `51321aa` to `f0af4cb`

Bumps [engines/shopify_app](https://github.com/Shopify/shopify_app) from `51321aa` to `f0af4cb`.
- [Release notes](https://github.com/Shopify/shopify_app/releases)
- [Commits](https://github.com/Shopify/shopify_app/compare/51321aa9f6d09de291686e9cae0803114aa80785...f0af4cb7561dedbcc7a5148e91cd6a192495ff23)

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