chore(deps): bump graphql, @shopify/app and @shopify/cli

Bumps [graphql](https://github.com/graphql/graphql-js) to 16.8.1 and updates ancestor dependencies [graphql](https://github.com/graphql/graphql-js), [@shopify/app](https://github.com/Shopify/cli) and [@shopify/cli](https://github.com/Shopify/cli). These dependencies need to be updated together.


Updates `graphql` from 16.8.0 to 16.8.1
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v16.8.0...v16.8.1)

Updates `@shopify/app` from 3.48.4 to 3.50.0
- [Release notes](https://github.com/Shopify/cli/releases)
- [Commits](Shopify/cli@3.48.4...3.50.0)

Updates `@shopify/cli` from 3.48.4 to 3.50.0
- [Release notes](https://github.com/Shopify/cli/releases)
- [Commits](Shopify/cli@3.48.4...3.50.0)

---
updated-dependencies:
- dependency-name: graphql
  dependency-type: indirect
- dependency-name: "@shopify/app"
  dependency-type: direct:production
- dependency-name: "@shopify/cli"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>