Support PHP 5.3

As Parallel Lint supports PHP 5.3 again since [PR 51](php-parallel-lint/PHP-Parallel-Lint#51), it would be helpful for the Console Color repo to also support PHP 5.3.

Author: jrfnl

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        php: ['5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
+        php: ['5.3', '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
         experimental: [false]
 
         include:

composer.json

@@ -15,7 +15,7 @@
         "psr-4": {"PHP_Parallel_Lint\\PhpConsoleColor\\Test\\": "tests/"}
     },
     "require": {
-        "php": ">=5.4.0"
+        "php": ">=5.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.8.36 || ^5.0 || ^6.0 || ^7.0 || ^8.0 || ^9.0",