[feature]: Addition of a new Typescript sample of Nestjs GraphQL

[HarshSharma0801]

👀 Is there an existing feature request for this?

• I have searched the existing issues

🔖 Enhancement description

1. Adding a sample app support to the samples-typescript repository.

2. It will be a API service built with Nestjs and Graphql integrated with MongoDB.

3. Test using Keploy's docker record mode

🎤 Why should this be worked on?

Addition of sample with Nestjs and Graphql

💻 Repository

samples-typescript

[HarshSharma0801]

reference PR keploy/samples-typescript#72