Update dall-e-go.md

Update code to azure-sdk-for-go/sdk/ai/azopenai 0.5.0

Author: qt-luigi

articles/ai-services/openai/includes/dall-e-go.md

@@ -65,6 +65,7 @@ import (
 	"os"
 
 	"github.com/Azure/azure-sdk-for-go/sdk/ai/azopenai"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
 )
 
@@ -79,19 +80,15 @@ func main() {
 		return
 	}
 
-	keyCredential, err := azopenai.NewKeyCredential(azureOpenAIKey)
-
-	if err != nil {
-		// handle error
-	}
+	keyCredential := azcore.NewKeyCredential(azureOpenAIKey)
 
 	client, err := azopenai.NewClientWithKeyCredential(azureOpenAIEndpoint, keyCredential, nil)
 
 	if err != nil {
 		// handle error
 	}
 
-	resp, err := client.CreateImage(context.TODO(), azopenai.ImageGenerationOptions{
+	resp, err := client.GetImageGenerations(context.TODO(), azopenai.ImageGenerationOptions{
 		Prompt:         to.Ptr("a painting of a cat in the style of Dali"),
 		ResponseFormat: to.Ptr(azopenai.ImageGenerationResponseFormatURL),
 	}, nil)