spec: fix rspec raise_error warning

Rspec warns that if there is for example a SyntaxError, the test will
pass (an error was raised, but it wasn't an ArgumentError, so this is
fine).

Instead check that no error occurs whatsoever.

spec/services/procedure_export_service_spec.rb

@@ -370,7 +370,7 @@ describe ProcedureExportService do
         end
 
         it 'should have valid sheet name' do
-          expect { subject }.not_to raise_error(ArgumentError)
+          expect { subject }.not_to raise_error
         end
       end