fix(codegen): consistently add region as config option when generated client is Sigv4 but not AWS (#6156)

* fix(codegen): consistently add region as config option when generated client is Sigv4 but not AWS

* fix(codegen): consistently add region as config option when generated client is Sigv4 but not AWS

* fix(codegen): codegen diff

* fix(codegen): do not provide credentialDefaultProvider if service is not sigv4

* fix(codegen): address pr comments

* chore(codegen): sync codegen

Author: kuhe

clients/client-accessanalyzer/src/AccessAnalyzerClient.ts

@@ -284,15 +284,15 @@ export interface ClientDefaults extends Partial<__SmithyConfiguration<__HttpHand
   useFipsEndpoint?: boolean | __Provider<boolean>;
 
   /**
-   * The provider populating default tracking information to be sent with `user-agent`, `x-amz-user-agent` header
-   * @internal
+   * The AWS region to which this client will send requests
    */
-  defaultUserAgentProvider?: Provider<__UserAgent>;
+  region?: string | __Provider<string>;
 
   /**
-   * The AWS region to which this client will send requests
+   * The provider populating default tracking information to be sent with `user-agent`, `x-amz-user-agent` header
+   * @internal
    */
-  region?: string | __Provider<string>;
+  defaultUserAgentProvider?: Provider<__UserAgent>;
 
   /**
    * Default credentials provider; Not available in browser runtime.

clients/client-account/src/AccountClient.ts

@@ -203,15 +203,15 @@ export interface ClientDefaults extends Partial<__SmithyConfiguration<__HttpHand
   useFipsEndpoint?: boolean | __Provider<boolean>;
 
   /**
-   * The provider populating default tracking information to be sent with `user-agent`, `x-amz-user-agent` header
-   * @internal
+   * The AWS region to which this client will send requests
    */
-  defaultUserAgentProvider?: Provider<__UserAgent>;
+  region?: string | __Provider<string>;
 
   /**
-   * The AWS region to which this client will send requests
+   * The provider populating default tracking information to be sent with `user-agent`, `x-amz-user-agent` header
+   * @internal
    */
-  region?: string | __Provider<string>;
+  defaultUserAgentProvider?: Provider<__UserAgent>;
 
   /**
    * Default credentials provider; Not available in browser runtime.