Fix the test to use the busy_handler_timeout= method

Author: fractaledmind

test/test_integration_pending.rb

@@ -91,16 +91,7 @@ def test_busy_handler_timeout_releases_gvl
     end
     sleep 1
 
-    @db.busy_handler do |count|
-      now = Process.clock_gettime(Process::CLOCK_MONOTONIC)
-      if count.zero?
-        @timeout_deadline = now + 1
-      elsif now > @timeout_deadline
-        next false
-      else
-        sleep(0.001)
-      end
-    end
+    @db.busy_handler_timeout = 1000
     busy = Mutex.new
     busy.lock