CodeGen from PR 19386 in Azure/azure-rest-api-specs

Azure Event Grid 2022-06-15 API version support (#19386)

* Add previous GA 2021-12-01 API version Swagger and example files as a baseline

* Add 2022-06-15 API Swagger and related examples

* Update readme files with new ga api version

* add missing example file

* fix preterrier check:

* add missing example file

* add more missing example

* fix examples and typo in swagger

* fix examples

* Fix more example files

* fix example format

* Remove Azure on Arc from GA swagger as not yet ready for GA

* fix PrivateEndpointConnectionsParentType enum name issue

* fix TopicTypeSourceScope for previous preview api versions

Co-authored-by: Ashraf Hamad <ahamad@ntdev.microsoft.com>

Author: SDKAuto

schemas/2018-05-01/subscriptionDeploymentTemplate.json

@@ -857,6 +857,9 @@
             {
               "$ref": "https://schema.management.azure.com/schemas/2021-12-01/Microsoft.EventGrid.json#/unknown_resourceDefinitions/eventSubscriptions"
             },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/2022-06-15/Microsoft.EventGrid.json#/unknown_resourceDefinitions/eventSubscriptions"
+            },
             {
               "$ref": "https://schema.management.azure.com/schemas/2021-07-01/Microsoft.Features.json#/subscription_resourceDefinitions/featureProviders_subscriptionFeatureRegistrations"
             },