Add milliPascal (mPa) in Unit of Pressure for number and sensor integrations (#2809)

Author: Domochip

docs/core/entity/number.md

@@ -69,7 +69,7 @@ If specifying a device class, your number entity will need to also return the co
 | `NumberDeviceClass.POWER_FACTOR` | %, None | Power Factor
 | `NumberDeviceClass.PRECIPITATION` | cm, in, mm | Accumulated precipitation
 | `NumberDeviceClass.PRECIPITATION_INTENSITY` | in/d, in/h, mm/d, mm/h | Precipitation intensity
-| `NumberDeviceClass.PRESSURE` | cbar, bar, hPa, mmHg, inHg, kPa, mbar, Pa, psi | Pressure.
+| `NumberDeviceClass.PRESSURE` | cbar, bar, hPa, mmHg, inHg, kPa, mbar, Pa, psi, mPa | Pressure.
 | `NumberDeviceClass.REACTIVE_ENERGY` | varh, kvarh | Reactive energy
 | `NumberDeviceClass.REACTIVE_POWER` | mvar, var, kvar | Reactive power
 | `NumberDeviceClass.SIGNAL_STRENGTH` | dB, dBm | Signal strength

docs/core/entity/sensor.md

@@ -72,7 +72,7 @@ If specifying a device class, your sensor entity will need to also return the co
 | `SensorDeviceClass.POWER_FACTOR` | %, None | Power Factor
 | `SensorDeviceClass.PRECIPITATION` | cm, in, mm | Accumulated precipitation
 | `SensorDeviceClass.PRECIPITATION_INTENSITY` | in/d, in/h, mm/d, mm/h | Precipitation intensity
-| `SensorDeviceClass.PRESSURE` | cbar, bar, hPa, mmHg, inHg, kPa, mbar, Pa, psi | Pressure.
+| `SensorDeviceClass.PRESSURE` | cbar, bar, hPa, mmHg, inHg, kPa, mbar, Pa, psi, mPa | Pressure.
 | `SensorDeviceClass.REACTIVE_ENERGY` | varh, kvarh | Reactive energy
 | `SensorDeviceClass.REACTIVE_POWER` | mvar, var, kvar | Reactive power
 | `SensorDeviceClass.SIGNAL_STRENGTH` | dB, dBm | Signal strength