Fix add role ai training reader

[Tiboau]

Description

Add role ia_training_read

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

 ~/Templates % terraform apply -auto-approve  
[...]
Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # ovh_cloud_project_user.ai-user will be created
  + resource "ovh_cloud_project_user" "ai-user" {
      + creation_date = (known after apply)
      + id            = (known after apply)
      + openstack_rc  = (known after apply)
      + password      = (sensitive value)
      + role_names    = [
          + "ai_training_operator",
          + "ai_training_read",
          + "objectstore_operator",
        ]
[...]

Plan: 1 to add, 0 to change, 0 to destroy.
[...]
Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

[rbeuque74]

Hello @Tibauo
Thanks for your contribution.
We will review it, and plan to include it in our next release.