Support google provider v7 (blocked: v0.2.0 requires `< 7.0`)

[lsosamorean]

Problem
v0.2.0 (latest release) pins hashicorp/google to >= 3.53, < 7.0. Most other
Google-maintained modules now require v7 (e.g. terraform-google-modules/sql-db ~> 27.1
requires >= 7.2.0, < 8.0.0), so this module can't be used in the same root module:

Error: Failed to query available provider packages
locked provider registry.terraform.io/hashicorp/google 7.16.0 does not match
configured version constraint >= 3.53.0, < 7.0.0, >= 7.2.0, < 8.0.0 ...

There are also two related constraints that block the upgrade:

• The service_account submodule (terraform-google-modules/service-accounts/google ~> 4.1.1)
  requires google < 5.0.
• random ~> 3.4.3 conflicts with other modules that already use random 3.5+.

Request
Please merge #22 (google < 8.4), #62 (service-accounts v5) and #14 (random ~> 3.9)
and cut a new release.

Environment

• Terraform >= 1.13
• hashicorp/google 7.16.0
• cloud-workflows module 0.2.0