docs: fix installation version of packages (#8177)

www/apps/resources/app/architectural-modules/event/local/page.mdx

@@ -23,7 +23,7 @@ The Local Event Bus Module is installed by default in your application.
 To install Local Event Bus Module, run the following command in the directory of your Medusa application:
 
 ```bash npm2yarn
-npm install @medusajs/event-local
+npm install @medusajs/event-local@preview
 ```
 
 Next, add the module into the `modules` property of the exported object in `medusa-config.js`:

www/apps/resources/app/architectural-modules/event/redis/page.mdx

@@ -25,7 +25,7 @@ In production, it's recommended to use this module.
 To install Redis Event Bus Module, run the following command in the directory of your Medusa application:
 
 ```bash npm2yarn
-npm install @medusajs/event-redis
+npm install @medusajs/event-redis@preview
 ```
 
 Next, add the module into the `modules` property of the exported object in `medusa-config.js`: