Fix TestAccComposer1Environment_withNodeConfig

[modular-magician]

Fix flakey test due to permission not having time to propagate

https://hashicorp.teamcity.com/test/-6915189059560242933?currentProjectId=TerraformProviders_GoogleCloud_GOOGLE_NIGHTLYTESTS&expandTestHistoryChartSection=true

------- Stdout: -------
=== RUN   TestAccComposer1Environment_withNodeConfig
=== PAUSE TestAccComposer1Environment_withNodeConfig
=== CONT  TestAccComposer1Environment_withNodeConfig
    resource_composer_environment_test.go:850: Step 1/3 error: Error running apply: exit status 1
        Error: Error waiting to create Environment: Error waiting for Creating Environment: Error code 9, message: Failed to create environment, but no error was surfaced. This can be caused by a lack of proper permissions. Check if this environment's service xxx@zzziam.gserviceaccount.com has the 'roles/composer.worker' role and there is no firewall inhibiting internal communications set. In case, it is a Compute default service account it should have Editor permissions. For the required permissions information, please, refer to https://cloud.google.com/composer/docs/how-to/access-control  https://cloud.google.com/composer/docs/troubleshooting-environment-creation page contains more troubleshooting instructions
          with google_composer_environment.test,
          on terraform_plugin_test.tf line 4, in resource "google_composer_environment" "test":
           4: resource "google_composer_environment" "test" {
--- FAIL: TestAccComposer1Environment_withNodeConfig (2737.56s)

Release Note Template for Downstream PRs (will be copied)

Derived from GoogleCloudPlatform/magic-modules#11926

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