Update generated code (#1129)

* update generated code

* Apply suggestions from code review

Co-authored-by: Jérémy Derussé <jeremy@derusse.com>

Author: async-aws-bot

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Added
 
 - AWS api-change: Added `us-iso-west-1` region
+- AWS api-change: Used regional endpoint for `us` regions
 
 ## 1.12.0
 

src/Sts/StsClient.php

@@ -155,14 +155,6 @@ protected function getEndpointMetadata(?string $region): array
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
-            case 'us-gov-east-1':
-            case 'us-gov-west-1':
-                return [
-                    'endpoint' => "https://sts.$region.amazonaws.com",
-                    'signRegion' => $region,
-                    'signService' => 'sts',
-                    'signVersions' => ['v4'],
-                ];
             case 'us-iso-east-1':
             case 'us-iso-west-1':
                 return [
@@ -178,41 +170,83 @@ protected function getEndpointMetadata(?string $region): array
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-east-1':
+                return [
+                    'endpoint' => 'https://sts.us-east-1.amazonaws.com',
+                    'signRegion' => 'us-east-1',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-east-1-fips':
                 return [
                     'endpoint' => 'https://sts-fips.us-east-1.amazonaws.com',
                     'signRegion' => 'us-east-1',
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-east-2':
+                return [
+                    'endpoint' => 'https://sts.us-east-2.amazonaws.com',
+                    'signRegion' => 'us-east-2',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-east-2-fips':
                 return [
                     'endpoint' => 'https://sts-fips.us-east-2.amazonaws.com',
                     'signRegion' => 'us-east-2',
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-gov-east-1':
+                return [
+                    'endpoint' => 'https://sts.us-gov-east-1.amazonaws.com',
+                    'signRegion' => 'us-gov-east-1',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-gov-east-1-fips':
                 return [
                     'endpoint' => 'https://sts.us-gov-east-1.amazonaws.com',
                     'signRegion' => 'us-gov-east-1',
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-gov-west-1':
+                return [
+                    'endpoint' => 'https://sts.us-gov-west-1.amazonaws.com',
+                    'signRegion' => 'us-gov-west-1',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-gov-west-1-fips':
                 return [
                     'endpoint' => 'https://sts.us-gov-west-1.amazonaws.com',
                     'signRegion' => 'us-gov-west-1',
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-west-1':
+                return [
+                    'endpoint' => 'https://sts.us-west-1.amazonaws.com',
+                    'signRegion' => 'us-west-1',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-west-1-fips':
                 return [
                     'endpoint' => 'https://sts-fips.us-west-1.amazonaws.com',
                     'signRegion' => 'us-west-1',
                     'signService' => 'sts',
                     'signVersions' => ['v4'],
                 ];
+            case 'us-west-2':
+                return [
+                    'endpoint' => 'https://sts.us-west-2.amazonaws.com',
+                    'signRegion' => 'us-west-2',
+                    'signService' => 'sts',
+                    'signVersions' => ['v4'],
+                ];
             case 'us-west-2-fips':
                 return [
                     'endpoint' => 'https://sts-fips.us-west-2.amazonaws.com',