Issue #3398897 by AaronBauman, ducviethaboo: Creation of dynamic property $key

modules/salesforce_mapping/src/Entity/MappedObject.php

...sforce_mapping/src/Event/SalesforceDeleteAllowedEvent.php

...lesforce_mapping/src/SalesforceMappingFieldPluginBase.php

...es/salesforce_mapping/tests/src/Unit/MappedObjectTest.php

...lesforce_mapping/tests/src/Unit/SalesforceMappingTest.php

modules/salesforce_pull/salesforce_pull.services.yml

modules/salesforce_pull/src/DeleteHandler.php

modules/salesforce_pull/src/Plugin/QueueWorker/PullBase.php

modules/salesforce_pull/src/QueueHandler.php

...es/salesforce_pull/tests/src/Functional/PullQueueTest.php

modules/salesforce_pull/tests/src/Unit/DeleteHandlerTest.php

modules/salesforce_pull/tests/src/Unit/PullBaseTest.php

modules/salesforce_pull/tests/src/Unit/QueueHandlerTest.php

modules/salesforce_push/salesforce_push.module

modules/salesforce_push/tests/src/Unit/PushQueueTest.php

...h/tests/src/Unit/SalesforcePushQueueProcessorRestTest.php

src/Entity/SalesforceAuthConfig.php

src/Form/SalesforceAuthForm.php

src/Rest/RestClient.php

src/Rest/RestResponseDescribe.php