AmazonWebServicesClientProxy.logRequestMetadataV2 causes a premature evaluation of the response object

**Summary**: `AmazonWebServicesClientProxy.logRequestMetadataV2` causes lazily-evaluated SDK response objects (streams, iterables) to be evaluated immediately. A response resolve would immediately engage the SDK client and execute the service API calls. Whenever a consumer of this response object would access the data again, it would have to be re-resolved and the same API calls would be executed once again. The issue issue exists in the latest lib version.

**Example**: using `injectCredentialsAndInvokeIterableV2` paginated operation causes the SDK to perform 2x more API requests.

**Details**:
`AmazonWebServicesClientProxy` exposes multiple handles to interact with the SDK client. A response object could be either immediately (plain `AwsResponse` object) or lazily (`CompletableFuture`, `SdkIterable`, `ResponseInputStream`) evaluated. A private logging routine called `logRequestMetadataV2` causes lazily evaluated response objects to be evaluated immediately for the sake of logging. The resolve would cause a full range of the service API calls to be executed. By default, the SDK would not perform a deep response cache, hence a secondary access to the response data would once again hook up the SDK client, which would perform the same set of API calls.

```java
public >
IterableT
injectCredentialsAndInvokeIterableV2(final RequestT request, final Function requestFunction) {

AwsRequestOverrideConfiguration overrideConfiguration = AwsRequestOverrideConfiguration.builder()
.credentialsProvider(v2CredentialsProvider).build();

@SuppressWarnings("unchecked")
RequestT wrappedRequest = (RequestT) request.toBuilder().overrideConfiguration(overrideConfiguration).build();

try {
IterableT response = requestFunction.apply(wrappedRequest);
response.forEach(r -> logRequestMetadataV2(request, r)); // <- this invocation would resolve the response object immediately
return response; // <- the response object is returned to the invoker. It would be re-resolved upon a data access.
} catch (final Throwable e) {
loggerProxy.log(String.format("Failed to execute remote function: {%s}", e.getMessage()));
throw e;
}
}
```

**Possible Mitigation**: `logRequestMetadataV2` (and any other kind of non-lazy logging) should be avoided on all non-immediately resolved result types in the following routines:
* `injectCredentialsAndInvokeV2Async`
* `injectCredentialsAndInvokeIterableV2`
* `injectCredentialsAndInvokeV2InputStream`
* `injectCredentialsAndInvokeV2Bytes`

Comienza con injectCredentialsAndInvokeV2Async, injectCredentialsAndInvokeIterableV2, injectCredentialsAndInvokeV2InputStream e injectCredentialsAndInvokeV2Bytes; después, inspecciona cómo cada uno llama a logRequestMetadataV2. Verifica que los resultados lazy de CompletableFuture, SdkIterable y ResponseInputStream no se consuman durante el registro, mientras que las respuestas resueltas inmediatamente sigan registrando los metadatos sin provocar llamadas duplicadas a la API del servicio.

Escrito por el modelo de indexación a partir del texto del issue.