chore(lambda): backfill missing enums for lambda

packages/aws-cdk-lib/aws-lambda/lib/event-source-mapping.ts

@@ -49,6 +49,11 @@ export class SourceAccessConfigurationType {
    */
   public static readonly SERVER_ROOT_CA_CERTIFICATE = new SourceAccessConfigurationType('SERVER_ROOT_CA_CERTIFICATE');
 
+  /**
+   * The name of the virtual host in your RabbitMQ broker. Lambda uses this RabbitMQ host as the event source.
+   */
+  public static readonly VIRTUAL_HOST = new SourceAccessConfigurationType('VIRTUAL_HOST');
+
   /** A custom source access configuration property */
   public static of(name: string): SourceAccessConfigurationType {
     return new SourceAccessConfigurationType(name);