Update tests to test for 5 GB of packages in the project/namespace statistics.

This would currently fail due to graphql-constraints on integer types (which is of range -2^31 .. 2^31-1)

spec/requests/api/graphql/namespace/root_storage_statistics_spec.rb

@@ -6,7 +6,7 @@ describe 'rendering namespace statistics' do
   include GraphqlHelpers
 
   let(:namespace) { user.namespace }
-  let!(:statistics) { create(:namespace_root_storage_statistics, namespace: namespace, packages_size: 5.megabytes) }
+  let!(:statistics) { create(:namespace_root_storage_statistics, namespace: namespace, packages_size: 5.gigabytes) }
   let(:user) { create(:user) }
 
   let(:query) do
@@ -26,7 +26,7 @@ describe 'rendering namespace statistics' do
       post_graphql(query, current_user: user)
 
       expect(graphql_data['namespace']['rootStorageStatistics']).not_to be_blank
-      expect(graphql_data['namespace']['rootStorageStatistics']['packagesSize']).to eq(5.megabytes)
+      expect(graphql_data['namespace']['rootStorageStatistics']['packagesSize']).to eq(5.gigabytes)
     end
   end
 

spec/requests/api/graphql/project/project_statistics_spec.rb

@@ -6,7 +6,7 @@ describe 'rendering project statistics' do
   include GraphqlHelpers
 
   let(:project) { create(:project) }
-  let!(:project_statistics) { create(:project_statistics, project: project, packages_size: 5.megabytes) }
+  let!(:project_statistics) { create(:project_statistics, project: project, packages_size: 5.gigabytes) }
   let(:user) { create(:user) }
 
   let(:query) do
@@ -28,7 +28,7 @@ describe 'rendering project statistics' do
   it "includes the packages size if the user can read the statistics" do
     post_graphql(query, current_user: user)
 
-    expect(graphql_data['project']['statistics']['packagesSize']).to eq(5.megabytes)
+    expect(graphql_data['project']['statistics']['packagesSize']).to eq(5.gigabytes)
   end
 
   context 'when the project is public' do