message: fix(api): use lower currents for plunger homing to prevent transients
  Customer reports on 3.14.0 have shown possible electrical damage to pipettes;
  the most immediate change that could cause this was a systematic increase in
  homing currents from 50 mA to 500 mA. This commit makes those homing currents 50
  mA again.
diff: @@ -30,7 +30,7 @@ TIP_PROBE_Z_CLEARANCE_START = 20
  TIP_PROBE_Z_CLEARANCE_CROSSOVER = 35
  PLUNGER_CURRENT_LOW = 0.05
  -PLUNGER_CURRENT_HIGH = 0.5
  +PLUNGER_CURRENT_HIGH = 0.05
  MOUNT_CURRENT_LOW = 0.1
  MOUNT_CURRENT_HIGH = 0.8
  