Update private network & update test

[Tiboau]

Description

Add possibility to update network private regions

Fixes #402

Type of change

Please delete options that are not relevant.

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

How Has This Been Tested?

Create :

resource "ovh_cloud_project_network_private" "network" {
  name         = "network"
  regions      = ["GRA11", "GRA9"]
  vlan_id      = 0
}

Output

  # ovh_cloud_project_network_private.network will be created
  + resource "ovh_cloud_project_network_private" "network" {
      + id                 = (known after apply)
      + name               = "network"
      + regions            = [
          + "GRA11",
          + "GRA9",
        ]
      + regions_attributes = (known after apply)
      + regions_status     = (known after apply)
      + service_name       = "xxxxxxx"
      + status             = (known after apply)
      + type               = (known after apply)
      + vlan_id            = 0
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Update

resource "ovh_cloud_project_network_private" "network" {
  name         = "network"
  regions      = ["GRA11", "GRA9", "DE1", "SBG5"]
  vlan_id      = 0
}

Output

  # ovh_cloud_project_network_private.network will be updated in-place
  ~ resource "ovh_cloud_project_network_private" "network" {
        id                 = "xxxx"
        name               = "network"
      ~ regions            = [
          + "DE1",
          + "SBG5",
            # (2 unchanged elements hidden)
        ]
        # (6 unchanged attributes hidden)
    }

Make test

make testacc TESTARGS="-run TestAccCloudProjectNetworkPrivate_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test $(go list ./... |grep -v 'vendor') -v -run TestAccCloudProjectNetworkPrivate_basic -timeout 600m -p 10
?       github.com/ovh/terraform-provider-ovh   [no test files]
?       github.com/ovh/terraform-provider-ovh/ovh/helpers       [no test files]
?       github.com/ovh/terraform-provider-ovh/ovh/types [no test files]
=== RUN   TestAccCloudProjectNetworkPrivate_basic
    provider_test.go:387: Read Cloud Project /cloud/project/bad3308a4b4d4dcba4d15d5b082d7225 -> status: 'ok', desc: 'Production'
--- PASS: TestAccCloudProjectNetworkPrivate_basic (47.85s)
PASS
ok      github.com/ovh/terraform-provider-ovh/ovh       47.864s
testing: warning: no tests to run
PASS
ok      github.com/ovh/terraform-provider-ovh/ovh/helpers/hashcode      (cached) [no tests to run]

Test Configuration:

• Terraform version: Terraform v1.5.7

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my code
• [x] I have added acceptance tests that prove my fix is effective or that my feature works