[10.x] Specifies that Laravel now requires Composer 2.2 or greater (#8564)

* Specifies that Laravel now requires Composer 2.2 or greater

* Makes version format similar to PHP one

* Update upgrade.md

* Update upgrade.md

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: nunomaduro

upgrade.md

@@ -59,6 +59,10 @@
 
 Laravel now requires PHP 8.1.0 or greater.
 
+#### Composer 2.2.0 Required
+
+Laravel now requires [Composer](https://getcomposer.org) 2.2.0 or greater.
+
 #### Composer Dependencies
 
 You should update the following dependencies in your application's `composer.json` file: