Update PrAT feature check to return false for gitlab.com

Not ready to be released for gitlab.com yet

app/services/resource_access_tokens/create_service.rb

@@ -32,6 +32,8 @@ module ResourceAccessTokens
     attr_reader :resource_type, :resource
 
     def feature_enabled?
+      return false if ::Gitlab.com?
+
       ::Feature.enabled?(:resource_access_token, resource, default_enabled: true)
     end
 

spec/services/resource_access_tokens/create_service_spec.rb

@@ -34,6 +34,16 @@ RSpec.describe ResourceAccessTokens::CreateService do
       end
     end
 
+    shared_examples 'fails on gitlab.com' do
+      before do
+        allow(Gitlab).to receive(:com?) { true }
+      end
+
+      it 'returns nil' do
+        expect(subject).to be nil
+      end
+    end
+
     shared_examples 'allows creation of bot with valid params' do
       it { expect { subject }.to change { User.count }.by(1) }
 
@@ -171,6 +181,7 @@ RSpec.describe ResourceAccessTokens::CreateService do
 
       it_behaves_like 'fails when user does not have the permission to create a Resource Bot'
       it_behaves_like 'fails when flag is disabled'
+      it_behaves_like 'fails on gitlab.com'
 
       context 'user with valid permission' do
         before_all do