Bump the frequency for the opcode arg test

Author: fractaledmind

test/test_integration.rb

@@ -527,7 +527,7 @@ def test_progress_handler_opcode_arg
     first_count = progress_calls.size
 
     progress_calls = []
-    @db.progress_handler(2, handler)
+    @db.progress_handler(4, handler)
     @db.execute "create table test2(a, b)"
     second_count = progress_calls.size