Fix failing spec/models/internal_id_spec.rb spec

The spec is too strict about how many `current_version` should be
called - if the spec is called separately, it's called 3 times, if
all specs run it's called twice.

This is similar to the change done in
9b752791

spec/models/internal_id_spec.rb

@@ -158,7 +158,7 @@ describe InternalId do
       before do
         described_class.reset_column_information
         # Project factory will also call the current_version
-        expect(ActiveRecord::Migrator).to receive(:current_version).twice.and_return(InternalId::REQUIRED_SCHEMA_VERSION - 1)
+        expect(ActiveRecord::Migrator).to receive(:current_version).at_least(:once).and_return(InternalId::REQUIRED_SCHEMA_VERSION - 1)
       end
 
       it 'does not reset any of the iids' do