CODEOWNERS: Set tf-core-cloud as owner of Cloud backend (#36876)

* CODEOWNERS: Set tf-core-cloud as owner of Cloud backend

* add Core team as co-owner

Author: radeksimko

CODEOWNERS

@@ -23,6 +23,10 @@
 /internal/backend/remote-state/s3                @hashicorp/terraform-core @hashicorp/terraform-aws
 /internal/backend/remote-state/kubernetes        @hashicorp/terraform-core @hashicorp/tf-eco-hybrid-cloud
 
+# Cloud backend
+/internal/backend/remote    @hashicorp/terraform-core @hashicorp/tf-core-cloud
+/internal/cloud             @hashicorp/terraform-core @hashicorp/tf-core-cloud
+
 # Provisioners
 builtin/provisioners/file               @hashicorp/terraform-core
 builtin/provisioners/local-exec         @hashicorp/terraform-core