ci: test failing on PR's

[jrasell]

CI is currently failing on PR's but not on main. It's likely a CI configuration or parameter that needs changing.

    resource_namespace_test.go:138: Step 1/1 error: Error running apply: exit status 1
        
        Error: error upserting quota specification "quota1": Unexpected response code: 501 (Nomad Enterprise only endpoint)
        
          with nomad_quota_specification.test_quota,
          on terraform_plugin_test.tf line 3, in resource "nomad_quota_specification" "test_quota":
           3: resource "nomad_quota_specification" "test_quota" {