feat: adds pest function

src/Functions.php

@@ -3,6 +3,7 @@
 declare(strict_types=1);
 
 use Pest\Concerns\Expectable;
+use Pest\Configuration;
 use Pest\Exceptions\AfterAllWithinDescribe;
 use Pest\Exceptions\BeforeAllWithinDescribe;
 use Pest\Expectation;
@@ -108,6 +109,16 @@ if (! function_exists('uses')) {
     }
 }
 
+if (! function_exists('pest')) {
+    /**
+     * Creates a new Pest configuration instance.
+     */
+    function pest(): Configuration
+    {
+        return Configuration::getInstance();
+    }
+}
+
 if (! function_exists('test')) {
     /**
      * Adds the given closure as a test. The first argument