TL;DR
There is a commit in main, that needs to be released in order to support the new 6.x Google Terraform provider.
Merge this PR: #74
Expected behavior
A working module with 6.x.
Released 7 days ago: https://registry.terraform.io/providers/hashicorp/google/6.0.1
Observed behavior
Due to version constrains, unable to initialize.
Terraform Configuration
Terraform Version
Additional information
The commit is already pushed; 65e8c6b
We just need a new release to be able to properly pull it.