Use fast-uri with Ajv to speed up cold start

[mcollina]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

A long time ago we identified the dependency uri-js as the main performance bottleneck for cold start (see garycourt/uri-js#40). Unfortunately the maintainers did not want to work in improving the performance. A few months back @zekth forked uri-js into https://github.com/fastify/fast-uri fixing that performance issues and others.

We should use this for the fastify v4 launch. To do so we need:

• feat: add uriresolver option ajv-validator/ajv#1862 landed.

Motivation

No response

Example

No response

[zekth]

landed in : #3687