Introducing composite monitors

The Datadog Terraform provider v4.0.0 introduces significant improvements including enhanced resource import capabilities and support for new Datadog products like Vulnerability Management and Cloud Workload Security. This release focuses on simplifying infrastructure-as-code management with Datadog, offering a smoother and more robust experience for users managing their observability stack through Terraform. It also includes important breaking changes, so users are advised to review the migration guide before upgrading.