chore(lambda): backfill missing enums for lambda (#33651)

### Description of changes

backfill missing enums for lambda

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: paulhcsun

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);