Set CI env variables

### Prerequisites

- [X] I have written a descriptive issue title
- [X] I have searched existing issues to ensure the feature has not already been requested

### 🚀 Feature Proposal

Set Env variables liks CI, CI_REDIS, CI_MONGO etc. to make it possigle to detect runs in CI by the tests.

### Motivation

I would lke to run fastify-session plugin one time with in in memory store and once with redis.

### Example

_No response_