Remove mention of support of Node 14 and 16 (#1805)

* Update README

* Update contributing

Author: Strift

CONTRIBUTING.md

@@ -34,9 +34,8 @@ First of all, thank you for contributing to Meilisearch! The goal of this docume
 
 To run this project, you will need:
 
-- Node.js >= v16 and node <= 18
-- Yarn
-- vitest
+- Node >= v18 and Node <= 20
+- Yarn v1.x
 
 ### Setup
 

README.md

@@ -60,7 +60,7 @@ We recommend installing `meilisearch-js` in your project with your package manag
 npm install meilisearch
 ```
 
-`meilisearch-js` officially supports `node` versions >= 14 and <= 18.
+`meilisearch-js` officially supports `node` versions 18 LTS and 20 LTS.
 
 Instead of using a package manager, you may also import the library directly into your [HTML via a CDN](#include-script-tag).