chore: stabilize Metal organization test (#510)

The terraform acceptance test for `metal_organization` creates an
organization and then very quickly updates it. The update step started
failing at some point mid-2023 and was briefly fixed, but it has been
failing consistently for quite a while now.

There is some background processing that happens when an organization is
created, and the API will throw an error if the organization is updated
before that background processing is finished. This adds a delay between
the create and update calls for an organization so that the affected
test can pass.

Fixes #463.

equinix/resource_metal_organization_acc_test.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"log"
 	"testing"
+	"time"
 
 	"github.com/equinix/terraform-provider-equinix/internal/config"
 
@@ -75,7 +76,8 @@ func TestAccMetalOrganization_create(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccMetalOrganizationConfig_basicUpdate(rInt),
+				PreConfig: testAccMetalWaitForOrganization,
+				Config:    testAccMetalOrganizationConfig_basicUpdate(rInt),
 				Check: resource.ComposeTestCheckFunc(
 					testAccMetalOrganizationExists("equinix_metal_organization.test", &org2),
 					resource.TestCheckResourceAttr(
@@ -104,6 +106,14 @@ func testAccMetalSameOrganization(t *testing.T, before, after *packngo.Organizat
 	}
 }
 
+func testAccMetalWaitForOrganization() {
+	// Some aspect of organization creation takes a while
+	// to propagate; updating an organization too soon after
+	// create causes test failures and probably doesn't
+	// reflect real-world usage.
+	time.Sleep(5 * time.Minute)
+}
+
 func TestAccMetalOrganization_importBasic(t *testing.T) {
 	rInt := acctest.RandInt()
 	resource.ParallelTest(t, resource.TestCase{