Address missing template changes

Also address shared examples naming

ee/app/finders/ee/template_finder.rb

@@ -8,7 +8,7 @@ module EE
       dockerfiles: ::Gitlab::Template::CustomDockerfileTemplate,
       gitignores: ::Gitlab::Template::CustomGitignoreTemplate,
       gitlab_ci_ymls: ::Gitlab::Template::CustomGitlabCiYmlTemplate,
-      metrics_dashboard_ymls: ::Gitlab::Template::MetricsDashboardTemplate
+      metrics_dashboard_ymls: ::Gitlab::Template::CustomMetricsDashboardYmlTemplate
     ).freeze
 
     attr_reader :custom_templates

spec/support/shared_examples/lib/gitlab/template/template_shared_examples.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.shared_examples 'template shared examples' do |filename, file_extension|
+RSpec.shared_examples 'file template shared examples' do |filename, file_extension|
   describe '.all' do
     it "strips the #{file_extension} suffix" do
       expect(subject.all.first.name).not_to end_with(file_extension)