Add new region support (#1010)

Author: inlined

CHANGELOG.md

@@ -1 +1,2 @@
 - Parallelizes network calls that occur when validating authorization for onCall handlers.
+- Adds new regions to V2 API

src/v2/options.ts

@@ -33,7 +33,12 @@ import { ParamSpec } from './params/types';
 /**
  * List of all regions supported by Cloud Functions v2
  */
-export const SUPPORTED_REGIONS = ['us-west1', 'europe-west4'] as const;
+export const SUPPORTED_REGIONS = [
+  'us-west1',
+  'us-central1',
+  'europe-west4',
+  'asia-northeast1',
+] as const;
 
 /**
  * A region known to be supported by CloudFunctions v2