Update PHP pre-requisite description in README (woocommerce#34012)

README.md

@@ -12,7 +12,7 @@ To get up and running within the WooCommerce Monorepo, you will need to make sur
 
 * [NVM](https://github.com/nvm-sh/nvm#installing-and-updating): While you can always install Node through other means, we recommend using NVM to ensure you're aligned with the version used by our development teams. Our repository contains [an `.nvmrc` file](.nvmrc) which helps ensure you are using the correct version of Node.
 * [PNPM](https://pnpm.io/installation): Our repository utilizes PNPM to manage project dependencies and run various scripts involved in building and testing projects.
-* [PHP 7.2+](https://www.php.net/manual/en/install.php): WooCommerce Core currently features a minimum PHP version of 7.2. While you don't need to use it to run a local development environment, you will need it to utilize Composer.
+* [PHP 7.2+](https://www.php.net/manual/en/install.php): WooCommerce Core currently features a minimum PHP version of 7.2. It is also needed to run Composer and various project build scripts.
 * [Composer](https://getcomposer.org/doc/00-intro.md): We use Composer to manage all of the dependencies for PHP packages and plugins.
 
 Once you've installed all of the prerequisites, you can run the following commands to get everything working.