Switched continuous-integration.yml to use version 1 of the workflow and updated PHP versions to include old stable versions and the current stable version 8.4. Modified coding-standards.yml and static-analysis.yml to use PHP version 8.3.

Removed redundant sections and Phil Karlton's quote to streamline the README.md. Updated the description and provided a direct link to the relevant documentation on cache integration.

Updated the README.md to include a PHP code example demonstrating how to integrate and configure the Fastly CDN module for BEAR.Sunday. This should help developers understand the implementation process more clearly.

Upgraded doctrine/coding-standard to ^12.0, phpstan/phpstan to ^2.0, and vimeo/psalm to ^5.26. Removed psalm/plugin-phpunit dependency. These updates improve compatibility and incorporate the latest features and fixes.

Removed the `$_ENV['TMP_DIR']` parameter from `Injector` instantiation in tests for cleaner initiation. Updated `phpunit.xml.dist` to use a more standard bootstrap path, improving configuration consistency.

Changed the PHP version in phpcs.xml from 8.0 to 8.3 to ensure compatibility with the latest PHP features and improvements. This change aims to leverage the new capabilities introduced in PHP 8.3 and maintain compliance with updated coding standards.

Enable PHP 8.4 compat