Enable Google Workspace access for users and teams

[ubiratansoares]

As part of rust-lang/infra-team#64, we want to drive IaC for Google Workspace from this repository.

This tracking issue frames the following high-level core tasks:

• Setting up the integration with Google Workspace APIs
• Provisioning Google Workspace resources for eligible users and teams
• Update existing docs with instructions related to this work
• etc

Related PRs:

• google-workspace: add data models #2373