[PHP] Fix the Referenced PHPCompatibility Sniff Error

00-error.txt

ERROR: Referenced sniff "PHPCompatibility" does not exist

01-php-i.txt

The installed coding standards are PEAR, PSR1, Zend, Squiz, PSR12, PSR2, MySource and PHPCompatibility.

02-composer.json

"require-dev": {
  "phpcompatibility/php-compatibility": "*"
},
"prefer-stable" : true,
"scripts": {
  "post-install-cmd": "\"vendor/bin/phpcs\" --config-set installed_paths vendor/phpcompatibility/php-compatibility",
  "post-update-cmd" : "\"vendor/bin/phpcs\" --config-set installed_paths vendor/phpcompatibility/php-compatibility"
}