Merge pull request #2123 from esphome/bump-1.20.4

esphome/components/climate/climate.cpp

esphome/components/climate/climate.h

esphome/components/display/__init__.py

esphome/components/duty_cycle/duty_cycle_sensor.cpp

esphome/components/duty_cycle/duty_cycle_sensor.h

esphome/components/external_components/__init__.py

esphome/components/mqtt/mqtt_number.cpp

esphome/components/pid/pid_climate.cpp

esphome/components/pid/pid_climate.h

esphome/components/remote_transmitter/remote_transmitter.h

...omponents/remote_transmitter/remote_transmitter_esp32.cpp

esphome/components/time/automation.cpp

esphome/const.py

esphome/pins.py