change plunger hold current to 0.8 so pipette gets to temp quicker

Author: ryanthecoder

api/src/opentrons/config/defaults_ot3.py

@@ -158,7 +158,7 @@
         OT3AxisKind.X: 0.5,
         OT3AxisKind.Y: 0.5,
         OT3AxisKind.Z: 0.5,
-        OT3AxisKind.P: 0.3,
+        OT3AxisKind.P: 0.8,
         OT3AxisKind.Z_G: 0.2,
         OT3AxisKind.Q: 0.3,
     },