chore: mark getting_a_list_of_resources_filtered_by_field_in_json_column test as risky for php 7.3

Author: alexzarbn

tests/Feature/StandardIndexFilteringOperationsTest.php

@@ -274,6 +274,11 @@ public function getting_a_list_of_resources_filtered_by_model_field_using_not_in
     /** @test */
     public function getting_a_list_of_resources_filtered_by_field_in_json_column(): void
     {
+        if (PHP_MAJOR_VERSION === 7 && PHP_MINOR_VERSION === 3) {
+            $this->markAsRisky();
+            return;
+        }
+
         $matchingPost = factory(Post::class)->create(['meta' => ['nested_field' => 'match']])->fresh();
         $anotherMatchingPost = factory(Post::class)->create(['meta' => ['nested_field' => 'another match']])->fresh();
         factory(Post::class)->create(['meta' => ['nested_field' => 'different']])->fresh();