Current limit intake rollers more for safety

We don't need as much torque, so back it down.

Change-Id: Ic2a0dede20f501cc6e7724e41ebe3123be511734
diff --git a/y2019/wpilib_interface.cc b/y2019/wpilib_interface.cc
index d473b0f..2efb55b 100644
--- a/y2019/wpilib_interface.cc
+++ b/y2019/wpilib_interface.cc
@@ -359,7 +359,7 @@
   void set_intake_roller_talon(
       ::std::unique_ptr<::ctre::phoenix::motorcontrol::can::TalonSRX> t) {
     intake_rollers_talon_ = ::std::move(t);
-    intake_rollers_talon_->ConfigContinuousCurrentLimit(40.0, 0);
+    intake_rollers_talon_->ConfigContinuousCurrentLimit(20.0, 0);
     intake_rollers_talon_->EnableCurrentLimit(true);
   }