[IaC] Remove developer access for terraform planner service account

[KacperMalachowski]

Description:

As part of #8594 we have to set roles/container.developer to prevent from creating custom role. With end of using Prow the GKE clusters will be removed as well, please ensure to remove that role as well as it grants too much permissions for planner service account.

Acceptance Criteria

• Terraform Planner has not write access to resources except state bucket

Important information:

Blocked by Prow usage.