[ONOFF] Fix ACTUATOR_TRIGGER build flag: missing -D prefix (#2334)

Several envs pass '-ACTUATOR_TRIGGER=true' instead of
'-DACTUATOR_TRIGGER=true', so the ACTUATOR_TRIGGER macro is never defined
and the physical-button -> relay toggle in sensorGPIOInput.cpp
(#if defined(ZactuatorONOFF) && defined(ACTUATOR_TRIGGER)) is compiled out.

Verified on a Theengs Plug: with the -D added, a button press now toggles the
relay and emits ONOFFtoMQTT. Same one-character fix applied to the other envs
carrying the identical typo.

Affected envs: theengs-plug, esp32dev-all-test, sonoff-basic, sonoff-basic-rfr3.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

environments.ini

@@ -161,7 +161,7 @@ build_flags =
   '-DACTUATOR_ON=1'
   '-DACTUATOR_OFF=0'
   '-DACTUATOR_BUTTON_TRIGGER_LEVEL=0'
-  '-ACTUATOR_TRIGGER=true'
+  '-DACTUATOR_TRIGGER=true'
   '-DZsensorGPIOInput="GPIOInput"'
   '-DINPUT_GPIO=4'
   '-DACTUATOR_ONOFF_GPIO=25'
@@ -231,7 +231,7 @@ build_flags =
   '-DZgatewayBT="BT"'
   '-DZactuatorONOFF="ONOFF"'
   '-DACTUATOR_BUTTON_TRIGGER_LEVEL=0'
-  '-ACTUATOR_TRIGGER=true'
+  '-DACTUATOR_TRIGGER=true'
   '-DZactuatorFASTLED="FASTLED"'
   '-DZactuatorPWM="PWM"'
   '-DZsensorINA226="INA226"'
@@ -1761,7 +1761,7 @@ build_flags =
   '-DACTUATOR_ON=0'
   '-DACTUATOR_ONOFF_DEFAULT=ACTUATOR_ON'
   '-DACTUATOR_BUTTON_TRIGGER_LEVEL=0'
-  '-ACTUATOR_TRIGGER=true'
+  '-DACTUATOR_TRIGGER=true'
   '-DGateway_Name="OMG_SONOFF_RELAY"'
 board_build.flash_mode = dout
 custom_description = Basic Sonoff wifi relay
@@ -1784,7 +1784,7 @@ build_flags =
   '-DACTUATOR_ON=0'
   '-DACTUATOR_ONOFF_DEFAULT=ACTUATOR_ON'
   '-DACTUATOR_BUTTON_TRIGGER_LEVEL=0'
-  '-ACTUATOR_TRIGGER=true'
+  '-DACTUATOR_TRIGGER=true'
   '-DRF_RECEIVER_GPIO=4'
   '-DZgatewayRF="RF"'
   '-DGateway_Name="OMG_SONOFF_BASIC_RFR3"'