added ms.custom metadata for Build

Author: dlepow

articles/api-management/graphql-api.md

@@ -7,6 +7,7 @@ author: dlepow
 ms.author: danlep
 ms.topic: how-to
 ms.date: 05/17/2022
+ms.custom: event-tier1-build-2022
 ---
 
 # Import a GraphQL API

articles/api-management/graphql-policies.md

@@ -7,7 +7,7 @@ ms.service: api-management
 ms.topic: reference
 ms.date: 05/17/2022
 ms.author: danlep
-ms.custom: ignite-fall-2021
+ms.custom: event-tier1-build-2022
 ---
 
 # API Management policies for GraphQL APIs

articles/api-management/graphql-schema-resolve-api.md

@@ -7,7 +7,7 @@ author: dlepow
 ms.author: danlep
 ms.topic: how-to
 ms.date: 05/17/2022
-ms.custom: 
+ms.custom: event-tier1-build-2022
 ---
 
 # Import a GraphQL schema and set up field resolvers