Add support for the delete_dependents flag in Terraform and Pulumi providers for entity deletion.

Currently, the API suggests using this flag when dependent entities exist, but it isn’t supported in IaC, causing operations to fail.

Supporting the flag (configurable at the provider level, defaulting to false) would align IaC with API behavior, reduce customer confusion, and provide flexibility for advanced users, while requiring clear safeguards and documentation to mitigate risks of unintended data loss.