Is your feature request related to a problem? Please describe.

1. Apigee\Edge\Tests\Api\ApigeeX\Controller\DeveloperAcceptedRatePlanControllerTest::testAcceptRatePlan
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

2. Apigee\Edge\Tests\Api\Monetization\Controller\CompanyAcceptedRatePlanControllerTest::testAcceptRatePlan
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

3. Apigee\Edge\Tests\Api\Monetization\Controller\CompanyAcceptedRatePlanControllerTest::testUpdateSubscription
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

4. Apigee\Edge\Tests\Api\Monetization\Controller\DeveloperAcceptedRatePlanControllerTest::testAcceptRatePlan
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

5. Apigee\Edge\Tests\Api\Monetization\Controller\DeveloperAcceptedRatePlanControllerTest::testUpdateSubscription
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

6. Apigee\Edge\Tests\Serializer\EntitySerializerTest::testNormalize
   assertObjectNotHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectNotHasProperty() instead.

7. Apigee\Edge\Tests\Structure\PropertiesPropertyTransformationTest::testNormalize
   assertObjectHasAttribute() is deprecated and will be removed in PHPUnit 10. Refactor your test to use assertObjectHasProperty() instead.

8. Apigee\Edge\Tests\Api\ApigeeX\Controller\ApiProductControllerTest::testLoad
   This test depends on "Apigee\Edge\Tests\Api\ApigeeX\Controller\ApiProductControllerTest::testCreate" which does not exist.

Describe the solution you'd like
Update the deprecated functions which will be removed in PhpUnit 10