chore(ec2): add vpc endpoint for sagemaker studio (#21923)

This PR adds SageMaker Studio as one of the enum-like members for [`InterfaceVpcEndpointAwsService`](https://github.com/aws/aws-cdk/blob/17c94eb62ade60c707895afbacea582d42c7e286/packages/%40aws-cdk/aws-ec2/lib/vpc-endpoint.ts#L260-L323).

This is particularly useful for SageMaker Studio as its prefix is `aws.sagemaker`, which can be considered a corner case that wouldn't fit [`InterfaceVpcEndpointAwsService.getDefaultEndpointPrefix`](https://github.com/aws/aws-cdk/blob/17c94eb62ade60c707895afbacea582d42c7e286/packages/%40aws-cdk/aws-ec2/lib/vpc-endpoint.ts#L374-L395).

See: `aws ec2 describe-vpc-endpoint-services --query 'ServiceDetails[].ServiceName'`

----

### All Submissions:

* [X] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

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

Author: tuliocasagrande

packages/@aws-cdk/aws-ec2/lib/vpc-endpoint.ts

@@ -258,6 +258,7 @@ export class InterfaceVpcEndpointService implements IInterfaceVpcEndpointService
  * An AWS service for an interface VPC endpoint.
  */
 export class InterfaceVpcEndpointAwsService implements IInterfaceVpcEndpointService {
+  public static readonly SAGEMAKER_STUDIO = new InterfaceVpcEndpointAwsService('studio', 'aws.sagemaker');
   public static readonly SAGEMAKER_NOTEBOOK = new InterfaceVpcEndpointAwsService('notebook', 'aws.sagemaker');
   public static readonly ATHENA = new InterfaceVpcEndpointAwsService('athena');
   public static readonly APPLICATION_AUTOSCALING = new InterfaceVpcEndpointAwsService('application-autoscaling');

packages/@aws-cdk/aws-ec2/package.json

@@ -305,6 +305,7 @@
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SAGEMAKER_NOTEBOOK",
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SAGEMAKER_RUNTIME",
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SAGEMAKER_RUNTIME_FIPS",
+      "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SAGEMAKER_STUDIO",
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SECRETS_MANAGER",
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SERVICE_CATALOG",
       "docs-public-apis:@aws-cdk/aws-ec2.InterfaceVpcEndpointAwsService.SNS",