Up vacuum voltage slightly so it keeps pumping

Change-Id: I2fbde3ec2e01db5a298c966b9560fb2da7f08134
diff --git a/y2019/control_loops/superstructure/vacuum.h b/y2019/control_loops/superstructure/vacuum.h
index 3fd5a49..d2acf97 100644
--- a/y2019/control_loops/superstructure/vacuum.h
+++ b/y2019/control_loops/superstructure/vacuum.h
@@ -20,7 +20,7 @@
   static constexpr double kPumpVoltage = 8.0;
 
   // Voltage to the vaccum pump when we have a piece
-  static constexpr double kPumpHasPieceVoltage = 2.0;
+  static constexpr double kPumpHasPieceVoltage = 2.25;
 
   // Time to continue at the higher pump voltage after getting a gamepiece
   static constexpr aos::monotonic_clock::duration kTimeAtHigherVoltage =