Fix endpoint without region (#880)

* Fix endpoint without region

* Fixed tests

* cs fix

Co-authored-by: Nyholm <[email protected]>

Author: jderusse

src/LambdaClient.php

@@ -4,7 +4,6 @@
 
 use AsyncAws\Core\AbstractApi;
 use AsyncAws\Core\Configuration;
-use AsyncAws\Core\Exception\UnsupportedRegion;
 use AsyncAws\Core\RequestContext;
 use AsyncAws\Lambda\Enum\InvocationType;
 use AsyncAws\Lambda\Enum\LogType;
@@ -131,32 +130,6 @@ protected function getEndpointMetadata(?string $region): array
         }
 
         switch ($region) {
-            case 'af-south-1':
-            case 'ap-east-1':
-            case 'ap-northeast-1':
-            case 'ap-northeast-2':
-            case 'ap-south-1':
-            case 'ap-southeast-1':
-            case 'ap-southeast-2':
-            case 'ca-central-1':
-            case 'eu-central-1':
-            case 'eu-north-1':
-            case 'eu-south-1':
-            case 'eu-west-1':
-            case 'eu-west-2':
-            case 'eu-west-3':
-            case 'me-south-1':
-            case 'sa-east-1':
-            case 'us-east-1':
-            case 'us-east-2':
-            case 'us-west-1':
-            case 'us-west-2':
-                return [
-                    'endpoint' => "https://lambda.$region.amazonaws.com",
-                    'signRegion' => $region,
-                    'signService' => 'lambda',
-                    'signVersions' => ['v4'],
-                ];
             case 'cn-north-1':
             case 'cn-northwest-1':
                 return [
@@ -231,6 +204,11 @@ protected function getEndpointMetadata(?string $region): array
                 ];
         }
 
-        throw new UnsupportedRegion(sprintf('The region "%s" is not supported by "Lambda".', $region));
+        return [
+            'endpoint' => "https://lambda.$region.amazonaws.com",
+            'signRegion' => $region,
+            'signService' => 'lambda',
+            'signVersions' => ['v4'],
+        ];
     }
 }