Migration to fastify and graphql-yoga

[xoldd]

Is your feature request related to a problem? Please describe.
Talawa-api is making use of many legacy packages that are either not maintained anymore or do not have the best modern features for providing best developer experience.

Describe the solution you'd like
The primary server for talawa-api is to be migrated to fastify and the graphql apollo server is to be migrated to graphql-yoga. Fastify is a well maintained and trusted node.js framework with a big community. It's core maintainer Matteo Collina is one of the core contributers to node.js itself. Graphql-yoga is a modern spec-compliant graphql server that works on almost all javascript server runtimes.

Describe alternatives you've considered

Approach to be followed (optional)
It will be done in parts in a non breaking way so that it is easier to review the changes and also can be incrementally migrated instead of a sudden disruption.

Additional context
This is a pre-requisite to a lot of work that is to be done during GSOC 2024.

Potential internship candidates

[github-actions]

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