Make tests compatible with latest dashboard code changes

Author: danifr

manifests/init.pp

@@ -580,7 +580,7 @@
   Optional[String] $cni_rbac_binding                             = undef,
   Boolean $install_dashboard                                     = false,
   String $dashboard_version                                      = '1.10.1',
-  String $kubernetes_dashboard_url                               = undef,
+  Optional[String] $kubernetes_dashboard_url                     = undef,
   Boolean $schedule_on_controller                                = false,
   Integer $api_server_count                                      = undef,
   Boolean $delegated_pki                                         = false,

spec/classes/kube_addons_spec.rb

@@ -21,7 +21,6 @@
       'cni_rbac_binding' => 'foo',
       'cni_network_provider' => 'https://foo.test',
       'install_dashboard' => false,
-      'dashboard_version' => 'v1.10.1',
       'kubernetes_version' => '1.10.2',
       'schedule_on_controller' => true,
       'node_name' => 'foo',
@@ -43,7 +42,6 @@
       'cni_network_provider' => 'https://foo.test',
       'cni_provider' => 'calico',
       'install_dashboard' => false,
-      'dashboard_version' => 'v1.10.1',
       'kubernetes_version' => '1.10.2',
       'node_name' => 'foo',
       }
@@ -63,7 +61,6 @@
       'cni_network_provider' => 'https://foo.test',
       'cni_provider' => 'calico-tigera',
       'install_dashboard' => false,
-      'dashboard_version' => 'v1.10.1',
       'kubernetes_version' => '1.10.2',
       'node_name' => 'foo',
       }
@@ -82,7 +79,6 @@
       'cni_network_provider' => 'https://foo.test',
       'install_dashboard' => false,
       'kubernetes_version' => '1.10.2',
-      'dashboard_version' => 'v1.10.1',
       'schedule_on_controller' => false,
       'node_name' => 'foo',
       }
@@ -97,7 +93,7 @@
       'cni_network_provider' => 'https://foo.test',
       'install_dashboard' => true,
       'kubernetes_version' => '1.10.2',
-      'dashboard_version' => 'v1.10.1',
+      'dashboard_version' => '1.10.1',
       'schedule_on_controller' => false,
       'node_name' => 'foo',
       }