Introduce Beeceptor to the GraphQL tools list

[bee-anvith]

Description

This PR incorporates Beeceptor into the documentation.

We are adding this tool as a helpful option for developers seeking to implement service virtualization.

Beeceptor offers a no-code approach to setting up mock GraphQL servers directly from the Schema Definition Language (SDL). Its features include support for stateful responses, mutations, and subscriptions which may assist teams in facilitating parallel development and enhancing their integration testing workflows.

Changes introduced:

• Added beeceptor.md under src/code/services:

[vercel[bot]]

@bee-anvith is attempting to deploy a commit to the The GraphQL Foundation Team on Vercel.

A member of the Team first needs to authorize it.