[const] Move CONF_SHA256 to common code (#16751)

esphome/components/const/__init__.py

@@ -22,6 +22,7 @@ CONF_PARITY = "parity"
 CONF_RECEIVER_FREQUENCY = "receiver_frequency"
 CONF_REQUEST_HEADERS = "request_headers"
 CONF_ROWS = "rows"
+CONF_SHA256 = "sha256"
 CONF_STOP_BITS = "stop_bits"
 CONF_USE_PSRAM = "use_psram"
 CONF_VOLUME_INCREMENT = "volume_increment"

esphome/components/esp32_hosted/update/__init__.py

@@ -3,6 +3,7 @@ from typing import Any
 
 import esphome.codegen as cg
 from esphome.components import esp32, update
+from esphome.components.const import CONF_SHA256
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_PATH, CONF_SOURCE, CONF_TYPE
 from esphome.core import CORE, ID, HexInt
@@ -11,7 +12,6 @@ CODEOWNERS = ["@swoboda1337"]
 AUTO_LOAD = ["sha256", "watchdog", "json"]
 DEPENDENCIES = ["esp32_hosted"]
 
-CONF_SHA256 = "sha256"
 CONF_HTTP_REQUEST_ID = "http_request_id"
 
 TYPE_EMBEDDED = "embedded"

esphome/components/shelly_dimmer/light.py

@@ -7,6 +7,7 @@ import requests
 from esphome import pins
 import esphome.codegen as cg
 from esphome.components import light, sensor, uart
+from esphome.components.const import CONF_SHA256
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_CURRENT,
@@ -39,7 +40,6 @@ ShellyDimmer = shelly_dimmer_ns.class_(
 )
 
 CONF_FIRMWARE = "firmware"
-CONF_SHA256 = "sha256"
 CONF_UPDATE = "update"
 
 CONF_LEADING_EDGE = "leading_edge"