fix(ec2): add proper handling for VPC endpoint service name prefix eu.amazonaws for new region eusc-de-east-1 for ECR & API Gateway services

[salah1994-sys]

Reason for this change

For the new region eusc-de-east-1 will be launched in AWS European Sovereign Cloud, services like:-

• ECR
• API Gateway
• Security Hub

They have their VPC endpoint service name starts with prefix eu.amazonaws rather than the default com.amazonaws

This requires special handling similar to what's already implemented for China regions cn-north-1 & cn-northwest-1 otherwise, while deploying, CloudFormation stacks will hit the error "The Vpc Endpoint Service com.amazonaws.eusc-de-east-1.ecr.dkr does not exist"

Description of changes

In the file packages/aws-cdk-lib/aws-ec2/lib/vpc-endpoint.ts, I am updating the method getDefaultEndpointPrefix, adding special handling for eusc-de-east-1 when services are ['ecr.dkr', 'ecr.api', 'execute-api', 'securityhub'] to return eu.amazonaws instead of com.amazonaws. This is similar to what's already existing for China regions.

Description of how you validated changes

I also updated packages/aws-cdk-lib/aws-ec2/test/vpc-endpoint.test.ts to cover unit tests and was confirmed tests are passed

maelnabi@c889f3aaec8b aws-cdk-lib % yarn test aws-ec2
yarn run v1.22.22
$ jest aws-ec2
 PASS  aws-ec2/test/volume.test.ts (13.106 s)
 PASS  aws-ec2/test/instance.test.ts (14.333 s)
 PASS  aws-ec2/test/vpc.test.ts (15.864 s)
 PASS  aws-ec2/test/vpc-endpoint.test.ts (17.116 s)
 PASS  aws-ec2/test/launch-template.test.ts
 PASS  aws-ec2/test/security-group.test.ts
 PASS  aws-ec2/test/vpc-flow-logs.test.ts
 PASS  aws-ec2/test/userdata.test.ts
 PASS  aws-ec2/test/cfn-init.test.ts
 PASS  aws-ec2/test/cfn-init-element.test.ts
 PASS  aws-ec2/test/machine-image.test.ts
 PASS  aws-ec2/test/ip-addresses.test.ts
 PASS  aws-ec2/test/vpc.from-lookup.test.ts
 PASS  aws-ec2/test/connections.test.ts
 PASS  aws-ec2/test/vpc-endpoint-service.test.ts
 PASS  aws-ec2/test/vpn.test.ts
 PASS  aws-ec2/test/client-vpn-endpoint.test.ts
 PASS  aws-ec2/test/prefix-list.test.ts
 PASS  aws-ec2/test/network-utils.test.ts
 PASS  aws-ec2/test/bastion-host.test.ts
 PASS  aws-ec2/test/aspects/require-imdsv2-aspect.test.ts
 PASS  aws-ec2/test/client-vpn-route.test.ts
 PASS  aws-ec2/test/key-pair.test.ts
 PASS  aws-ec2/test/client-vpn-authorization-rule.test.ts
 PASS  aws-ec2/test/placement-group.test.ts
 PASS  aws-ec2/test/cidr-splits.test.ts
 PASS  aws-ec2/test/instance-requirements.test.ts
 PASS  aws-ec2/test/l1.test.ts
 PASS  aws-ec2/test/instance-type.test.ts

=============================== Coverage summary ===============================
Statements   : 59.25% ( 12033/20308 )
Branches     : 41.58% ( 3168/7618 )
Functions    : 43.44% ( 1860/4281 )
Lines        : 60.55% ( 11632/19210 )
================================================================================

Test Suites: 29 passed, 29 total
Tests:       941 passed, 941 total
Snapshots:   0 total
Time:        29.278 s
Ran all test suites matching /aws-ec2/i.
✨  Done in 32.88s.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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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

[aws-cdk-automation]

(This review is outdated)

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.