utils: Don't require configureBeforePrompt to return a promise

utils/index.d.ts

@@ -1293,7 +1293,7 @@ export declare abstract class AzureWizardPromptStep<T extends IActionContext> {
      * Can be used to optionally configure the wizard context before determining if prompting is required
      * This method will be called before `shouldPrompt`
      */
-    public configureBeforePrompt?(wizardContext: T): Promise<void>;
+    public configureBeforePrompt?(wizardContext: T): void | Promise<void>;
 
     /**
      * Return true if this step should prompt based on the current state of the wizardContext

utils/src/wizard/AzureWizardPromptStep.ts

@@ -21,7 +21,7 @@ export abstract class AzureWizardPromptStep<T extends types.IActionContext> impl
     public getSubWizard?(wizardContext: T): Promise<types.IWizardOptions<T> | undefined>;
     public undo?(wizardContext: T): void;
 
-    public configureBeforePrompt?(wizardContext: T): Promise<void>;
+    public configureBeforePrompt?(wizardContext: T): void | Promise<void>;
     public abstract shouldPrompt(wizardContext: T): boolean;
 
     public reset(): void {