[Enhancement]: Add sensitive flag to bgp_auth_key parameters for Direct Connect Virtual Interfaces

Description

For the various virtual interface resources associated with Direct Connects it would make sense to mark the bgp_auth_key as sensitive. This would for example be added here: https://github.com/hashicorp/terraform-provider-aws/blob/main/internal/service/directconnect/private_virtual_interface.go#L72-L77

Affected Resource(s) and/or Data Source(s)

aws_dx_transit_virtual_interface aws_dx_private_virtual_interface aws_dx_public_virtual_interface aws_dx_hosted_transit_virtual_interface aws_dx_hosted_private_virtual_interface aws_dx_hosted_public_virtual_interface

Potential Terraform Configuration

No response

References

No response

Would you like to implement a fix?

None