Revert "Update the default api so 2022-01"

This reverts commit 9f21b41.

Author: Kyon147

src/resources/config/shopify-app.php

@@ -164,7 +164,7 @@
     |
     */
 
-    'api_version' => env('SHOPIFY_API_VERSION', '2022-01'),
+    'api_version' => env('SHOPIFY_API_VERSION', '2021-01'),
 
     /*
     |--------------------------------------------------------------------------

tests/Services/ApiHelperTest.php

@@ -42,7 +42,7 @@ public function testMake(): void
         $this->assertInstanceOf(BasicShopifyAPI::class, $api);
         $this->assertSame(Util::getShopifyConfig('api_secret'), $this->app['config']->get('shopify-app.api_secret'));
         $this->assertSame(Util::getShopifyConfig('api_key'), $this->app['config']->get('shopify-app.api_key'));
-        $this->assertSame($this->app['config']->get('shopify-app.api_version'), '2022-01');
+        $this->assertSame($this->app['config']->get('shopify-app.api_version'), '2021-01');
     }
 
     public function testSetAndGetApi(): void