[components] Use options() and sub_text_sensors in recently added components

Build the dfrobot_sen0465 alarm types and mics_5524 conversion models with
options(), and register the systa_bus error code text sensor with
sub_text_sensors. The generated C++ is unchanged.

esphome/components/dfrobot_sen0465_base/__init__.py

@@ -34,10 +34,7 @@ DFRobotSEN0465Component = dfrobot_sen0465_base_ns.class_(
     "DFRobotSEN0465Component", cg.PollingComponent
 )
 AlarmType = dfrobot_sen0465_base_ns.enum("AlarmType", is_class=True)
-ALARM_TYPES = {
-    "LOW": AlarmType.ALARM_TYPE_LOW,
-    "HIGH": AlarmType.ALARM_TYPE_HIGH,
-}
+ALARM_TYPES = AlarmType.options("LOW", "HIGH", prefix="ALARM_TYPE_")
 
 # One piece of the temperature compensation from the DFRobot_MultiGasSensor library:
 # for low < T <= high, compensated = raw / (a * T + b) - (c * T + d)

esphome/components/mics_5524/__init__.py

@@ -43,10 +43,9 @@ CONF_RATIO_SENSOR = "ratio_sensor"
 CONF_RS_SENSOR = "rs_sensor"
 CONF_VOLTAGE_SENSOR = "voltage_sensor"
 
-CONVERSION_MODELS = {
-    "dfrobot": ConversionModel.CONVERSION_MODEL_DFROBOT,
-    "datasheet": ConversionModel.CONVERSION_MODEL_DATASHEET,
-}
+CONVERSION_MODELS = ConversionModel.options(
+    "dfrobot", "datasheet", prefix="CONVERSION_MODEL_"
+)
 
 # Divider guard limits (input max, pin max) in volts by target platform. ESP32 and RP2: VDD and
 # the absolute maximum VDD + 0.3 V; a bare ESP8266 A0 measures 0 - 1 V, boards with an onboard

esphome/components/systa_bus/text_sensor/__init__.py

@@ -37,9 +37,9 @@ async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 
-    if config[CONF_MODEL] == CONF_SYSTASOLAR_AQUA and CONF_ERROR_CODE in config:
-        sens = await text_sensor.new_text_sensor(config[CONF_ERROR_CODE])
-        cg.add(var.set_error_code_text_sensor(sens))
+    # The schema only lets a model's own keys through, so unconfigured ones are skipped here
+    text_sensors = text_sensor.sub_text_sensors(config)
+    await text_sensors(CONF_ERROR_CODE, var.set_error_code_text_sensor)
 
     systa_bus = await cg.get_variable(config[CONF_SYSTA_BUS_ID])
     await register_systa_bus_listener(systa_bus, var)