[VPCEP]: whitelisting for opentelekomcloud_vpcep_service_v1

[artem-lifshits]

Summary of the Pull Request

Implement domain whitelisting for opentelekomcloud_vpcep_service_v1.

PR Checklist

• Refers to: IAM Domain whitelisting is missing in vpcep_service_v1 #2216
• Tests added/passed.
• Documentation updated.
• Schema updated.
• Release notes added.

Acceptance Steps Performed

=== RUN   TestService_basic
=== PAUSE TestService_basic
=== CONT  TestService_basic
--- PASS: TestService_basic (85.26s)
PASS

Process finished with the exit code 0

[otc-zuul]

Build succeeded.
https://zuul.otc-service.com/t/eco/buildset/9e92d2288c7b4838a80389e6ac29d4e0

✔️ build-otc-releasenotes SUCCESS in 4m 07s
✔️ otc-golangci-lint SUCCESS in 3m 25s
✔️ golang-make-test SUCCESS in 4m 19s
✔️ golang-make-vet SUCCESS in 3m 46s
✔️ tflint SUCCESS in 2m 50s
✔️ goreleaser-build SUCCESS in 9m 22s