terraform-providers: update

This bumps the terraform provider to their latest version.

Hashicorp moved yet another provider to their organization
(`terraform-provider-helm`), so we need patch URLs in there as well.

The following proviers were not bumped:

 - `google[-beta]`: It seems something changed again here with how
   dependencies are provided.
 - `nomad`: fails to build
 - `lacework`: This one appeared fresh at `terraform-providers`, and
   doesn't build (yet?)